How to open MIDI-file and get events in a list?

[philipbergwerf]

I am planning to make a program that converts a midi file to a readable piano-roll editor. I worked on the design for like more than a year(!) and after a lot of drawing by hand, I want to just make it...
I want the program to open a midi file and render every line for me. I am not very experienced in programming but I already made a lead-sheet program so I know about using libriarys/basic knowledge but this seems really hard to me...

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def projectName():     print('PianoScript') def projectGoal():     print('MIDI to specifically-designed-piano-roll-for-reading-and-playing-piano converter')

The Questions:

1. I need to open a midi-file and get all midi events in a python list. How do I do that?
   
2. I am looking for the best python libriary for midifiles and I think that MIDIUtil is the best. Am I right(I hope someone with more experience in python and MIDI can help me)?
   
3. How would you start with a project like this?
   

[j.crater]

Hello,
due to new hobbies, the project you are working with sounds really interesting to me!
That said, the questions you posed are very broad. it's too much to take on all at once, in one thread (especially #3).

1. I need to open a midi-file and get all midi events in a python list. How do I do that?
Have you tried anything? Have you searched online for examples of how other people do it?
On your project building path, you will have a lot of searching and experimenting to do. This is just one example of it, so you better start tackling it on your own and get used to the process. We can of course help with specific coding questions, tips, correcting errors...

2. I am looking for the best python libriary for midifiles and I think that MIDIUtil is the best. Am I right(I hope someone with more experience in python and MIDI can help me)?
The subject you are dealing with is very specific. This is a general Python forum, so chances are you will find better suited audience for this question in a music-software community. Unfortunately I can't answer this question either.

3. How would you start with a project like this?
Now this question is very broad. There are articles written on the subject of software writing. Given that you asked a question like this, start with something smaller. Either a basic project, like a calculator (just an example, there are many options). Or you might prefer to start with implementing a little sub-part of your project idea. Such as reading midi files, storing the data in a list, displaying it in the console as the music is played, or so... This way you will build experience and get a feel of how coding process works. Then you can gradually move on with bigger ideas. Since your project idea (really cool one!) is not a straightforward coding exercise.
Sooner or later you will start using modules and packages. When you become familiar with them, you may start looking at your project design and translate the specifications/diagrams into modules, functions, classes... which your program will be made of.
Again, if you have specific questions, feel free to ask.
Good luck!

[philipbergwerf]

Thank you for the kind words!

Yes I made the diagram leadsheet with my first python program..
I learned already that i am asking too quickly, indeed first try to solve on your own. Currently, I am on the point where my (midi)program can open and display midi events on the staff!

(maybe you can recognize the piece from the screenshot;))

I will ask if I have specific questions!

[j.crater]

Hello, how has the project been progressing? Have you gotten stuck at any point?

Could this be Moonlight Sonata by LWB? :)

[philipbergwerf]

Hello, how has the project been progressing? Have you gotten stuck at any point?

Could this be Moonlight Sonata by LWB? :)

Ah way too late sorry... But I am continuing this project and changed the direction. I created a music scripting language/lilypond-like application where you can enter music through text and the program renders the score.

[j.crater]

This sounds impressive! I sure am interested to see the result. So feel free to share some screenshots or even snippets in the Code Sharing forum

[philipbergwerf]

This sounds impressive! I sure am interested to see the result. So feel free to share some screenshots or even snippets in the Code Sharing forum

Currently it growed to the next level :) Now the moonlight sonata looks like this:
(since I cannot post images on this forum directly I will post the current code and the save file which you can open :)

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### IMPORTS ### from tkinter import PhotoImage, Tk, Text, PanedWindow, Canvas, Scrollbar, Menu, filedialog, END, messagebox, simpledialog, EventType, colorchooser import platform, subprocess, os, datetime, sys     ### GUI ### #colors _bg = '#aaaaaa' #d9d9d9 papercolor = '#fefff0' midinotecolor = '#dddddd'     # Root root = Tk() root.title('PianoScript') scrwidth = root.winfo_screenwidth() scrheight = root.winfo_screenheight() root.geometry(f"{int(scrwidth / 1.5)}x{int(scrheight / 1.25)}+{int(scrwidth / 6)}+{int(scrheight / 12)}") # PanedWindow paned = PanedWindow(root, relief='flat', sashwidth=20, sashcursor='arrow', orient='h', bg=_bg) paned.pack(fill='both', expand=1) # Left Panel leftpanel = PanedWindow(paned, relief='flat', width=1350) paned.add(leftpanel) # Right Panel rightpanel = PanedWindow(paned,                             sashwidth=15,                             sashcursor='arrow',                             relief='flat') paned.add(rightpanel) # Canvas canvas = Canvas(leftpanel, bg=_bg, relief='flat') canvas.place(relwidth=1, relheight=1) vbar = Scrollbar(canvas, orient='vertical', width=20, relief='flat', bg=_bg) vbar.pack(side='right', fill='y') vbar.config(command=canvas.yview) canvas.configure(yscrollcommand=vbar.set) hbar = Scrollbar(canvas, orient='horizontal', width=20, relief='flat', bg=_bg) hbar.pack(side='bottom', fill='x') hbar.config(command=canvas.xview) canvas.configure(xscrollcommand=hbar.set)   # linux zoom def bbox_offset(bbox):         x1, y1, x2, y2 = bbox         return (x1-40, y1-40, x2+40, y2+40) def scrollD(event):     canvas.yview('scroll', int(event.y/200), 'units')     #canvas.configure(scrollregion=bbox_offset(canvas.bbox("all"))) def scrollU(event):     canvas.yview('scroll', -abs(int(event.y/200)), 'units')     #canvas.configure(scrollregion=bbox_offset(canvas.bbox("all"))) def zoomerP(event):     canvas.scale("all", event.x, event.y, 1.1, 1.1)     canvas.configure(scrollregion=bbox_offset(canvas.bbox("all"))) def zoomerM(event):     canvas.scale("all", event.x, event.y, 0.9, 0.9)     canvas.configure(scrollregion=bbox_offset(canvas.bbox("all"))) canvas.bind("<5>", scrollD) canvas.bind("<4>", scrollU) canvas.bind("<1>", zoomerP) canvas.bind("<3>", zoomerM)   if platform.system() == 'Darwin':     def _on_mousewheel(event):         canvas.yview_scroll(-1*(event.delta), "units")     canvas.bind("<MouseWheel>", _on_mousewheel)   textw = Text(rightpanel, foreground='black', background=_bg, insertbackground='red') textw.place(relwidth=1, relheight=1) textw.focus_set() fontsize = 16 textw.configure(font=('Terminal', fontsize)) # openfiledialog try:     try:         root.tk.call('tk_getOpenFile', '-foobarbaz')     except TclError:         pass       root.tk.call('set', '::tk::dialog::file::showHiddenBtn', '0')     root.tk.call('set', '::tk::dialog::file::showHiddenVar', '0') except:     pass   fscreen = 0 def fullscreen(s):     print('fullscreen')     global fscreen     if fscreen == 1:         root.wm_attributes('-fullscreen', 0)         fscreen = 0     else:         root.wm_attributes('-fullscreen', 1)         fscreen = 1     return             ### MAIN CODE ###   ########################################################################## ## File management                                                      ## ##########################################################################                             starttemplate = '''// titles: ~title{title} ~composer{composer} ~copyright{copyright}   // settings: ~mpline{6} ~scale{150} ~systemspace{90}   // measure mapping: ~meas{4/4 4 36}     // music: // ~hand{R} _1       ~hand{L} _1 '''   file = textw.get('1.0', END + '-1c') filepath = ''     def new_file():     print('new_file')     global filepath     if get_file() > '':         save_quest()     textw.delete('1.0', END)     textw.insert('1.0', starttemplate, 'r')     root.title('PianoScript - New')     filepath = 'New'     render('q')     return     def open_file():     print('open_file')     global filepath     save_quest()     f = filedialog.askopenfile(parent=root, mode='rb', title='Open', filetypes=[("PianoScript files","*.pnoscript")])     if f:         filepath = f.name         root.title(f'PianoScript - {filepath}')         textw.delete('1.0', END)         textw.insert('1.0', f.read())         render('q')     return     def save_file():     print('save_file')     if filepath == 'New':         save_as()         return     else:         f = open(filepath, 'w')         f.write(get_file())         f.close()     def save_as():     global filepath     f = filedialog.asksaveasfile(mode='w', parent=root, filetypes=[("PianoScript files","*.pnoscript")])     if f:         f.write(get_file())         f.close()         filepath = f.name         root.title(f'PianoScript - {filepath}')     return     def quit_editor():     print('quit_editor')     save_quest()     root.destroy()       def save_quest():     if messagebox.askyesno('Wish to save?', 'Do you wish to save the current file?'):         save_file()     else:         return     def get_file():     global file     file = textw.get('1.0', END + '-1c')     return file     def def_score_settings():     '''     This function opens the preferences(default score settings)     inside the GUI text editor     '''     save_quest()     confexst = path.exists("config.ini")     print(confexst)                                       ########################################################################## ## Tools                                                                ## ########################################################################## def strip_file_from_comments(f):     fl = ''     for i in f.split('\n'):         find = i.find('//')         if find >= 0:             i = i[:find]             fl += i+'\n'         else:             fl += i+'\n'       f = ''     for i in fl.split('\n'):         if i == '':             pass         else:             f += i+'\n'     return f     def duration_converter(string): # converts duration string to length in 'pianotick' format.       calc = ''       for i in string:         if i == 'W':             calc += '1024'         if i == 'H':             calc += '512'         if i == 'Q':             calc += '256'         if i == 'E':             calc += '128'         if i == 'S':             calc += '64'         if i == 'T':             calc += '32'         if i == '+':             calc += '+'         if i == '-':             calc += '-'         if i == '*':             calc += '*'         if i == '/':             calc += '/'         if i == '(':             calc += '('         if i == ')':             calc += ')'         if i == '.':             calc += '.'         if i in ['0','1','2','3','4','5','6','7','8','9']:             calc += i       dur = None       try:         dur = eval(calc)     except SyntaxError:         print(f'wrong duration: {string}')         return       return dur     def string2pitch(string):     pitchdict = {     # Oct 0     'a0':1, 'A0':2, 'b0':3,     # Oct 1     'c1':4, 'C1':5, 'd1':6, 'D1':7, 'e1':8, 'f1':9, 'F1':10, 'g1':11, 'G1':12, 'a1':13, 'A1':14, 'b1':15,     # Oct 2     'c2':16, 'C2':17, 'd2':18, 'D2':19, 'e2':20, 'f2':21, 'F2':22, 'g2':23, 'G2':24, 'a2':25, 'A2':26, 'b2':27,     # Oct 3     'c3':28, 'C3':29, 'd3':30, 'D3':31, 'e3':32, 'f3':33, 'F3':34, 'g3':35, 'G3':36, 'a3':37, 'A3':38, 'b3':39,     # Oct 4     'c4':40, 'C4':41, 'd4':42, 'D4':43, 'e4':44, 'f4':45, 'F4':46, 'g4':47, 'G4':48, 'a4':49, 'A4':50, 'b4':51,     # Oct 5     'c5':52, 'C5':53, 'd5':54, 'D5':55, 'e5':56, 'f5':57, 'F5':58, 'g5':59, 'G5':60, 'a5':61, 'A5':62, 'b5':63,     # Oct 6     'c6':64, 'C6':65, 'd6':66, 'D6':67, 'e6':68, 'f6':69, 'F6':70, 'g6':71, 'G6':72, 'a6':73, 'A6':74, 'b6':75,     # Oct 7     'c7':76, 'C7':77, 'd7':78, 'D7':79, 'e7':80, 'f7':81, 'F7':82, 'g7':83, 'G7':84, 'a7':85, 'A7':86, 'b7':87,     # Oct 8     'c8':88     }     ret = pitchdict[string]     return ret     def barline_pos_list(gridlist):     barlinepos = [0]     for grid in gridlist:         cntr = 0         for i in range(grid[2]):             nxtbarln = barlinepos[-1] + grid[0]             barlinepos.append(nxtbarln)     return barlinepos     def newline_pos_list(gridlist, mpline):     gridlist = barline_pos_list(gridlist)     linelist = [0]     cntr = 0     for barline in range(len(gridlist)):         try: cntr += mpline[barline]         except IndexError:             cntr += mpline[-1]         try: linelist.append(gridlist[cntr])         except IndexError:             linelist.append(gridlist[-1])             break     if linelist[-1] == linelist[-2]:         linelist.remove(linelist[-1])       linelist.pop(0)       return linelist     def staff_height(mn, mx):     '''     This function returns the height of a staff based on the     lowest and highest note.     '''     staffheight = 0       if mx >= 81:         staffheight = 225     if mx >= 76 and mx <= 80:         staffheight = 190     if mx >= 69 and mx <= 75:         staffheight = 165     if mx >= 64 and mx <= 68:         staffheight = 130     if mx >= 57 and mx <= 63:         staffheight = 105     if mx >= 52 and mx <= 56:         staffheight = 70     if mx >= 45 and mx <= 51:         staffheight = 45     if mx >= 40 and mx <= 44:         staffheight = 10     if mx < 40:         staffheight = 10     if mn >= 33 and mn <= 39:         staffheight += 35     if mn >= 28 and mn <= 32:         staffheight += 60     if mn >= 21 and mn <= 27:         staffheight += 95     if mn >= 16 and mn <= 20:         staffheight += 120     if mn >= 9 and mn <= 15:         staffheight += 155     if mn >= 4 and mn <= 8:         staffheight += 180     if mn >= 1 and mn <= 3:         staffheight += 195     return staffheight     def draw_staff_lines(y, mn, mx):     '''     'y' takes the y-position of the uppper line of the staff.     'mn' and 'mx' take the lowest and highest note in the staff     so the function can draw the needed lines.     '''       def draw3Line(y):         x = 70         canvas.create_line(x, y, x+printareawidth, y, width=2)         canvas.create_line(x, y+10, x+printareawidth, y+10, width=2)         canvas.create_line(x, y+20, x+printareawidth, y+20, width=2)         def draw2Line(y):         x = 70         canvas.create_line(x, y, x+printareawidth, y, width=0.5)         canvas.create_line(x, y+10, x+printareawidth, y+10, width=0.5)         def drawDash2Line(y):         x = 70         canvas.create_line(x, y, x+printareawidth, y, width=1, dash=(6,6))         canvas.create_line(x, y+10, x+printareawidth, y+10, width=1, dash=(6,6))       keyline = 0     staffheight = 0       if mx >= 81:         draw3Line(0+y)         draw2Line(35+y)         draw3Line(60+y)         draw2Line(95+y)         draw3Line(120+y)         draw2Line(155+y)         draw3Line(180+y)         keyline = 215     if mx >= 76 and mx <= 80:         draw2Line(0+y)         draw3Line(25+y)         draw2Line(60+y)         draw3Line(85+y)         draw2Line(120+y)         draw3Line(145+y)         keyline = 180     if mx >= 69 and mx <= 75:         draw3Line(0+y)         draw2Line(35+y)         draw3Line(60+y)         draw2Line(95+y)         draw3Line(120+y)         keyline = 155     if mx >= 64 and mx <= 68:         draw2Line(0+y)         draw3Line(25+y)         draw2Line(60+y)         draw3Line(85+y)         keyline = 120     if mx >= 57 and mx <= 63:         draw3Line(0+y)         draw2Line(35+y)         draw3Line(60+y)         keyline = 95     if mx >= 52 and mx <= 56:         draw2Line(0+y)         draw3Line(25+y)         keyline = 60     if mx >= 45 and mx <= 51:         draw3Line(0+y)         keyline = 35       drawDash2Line(keyline+y)       if mn >= 33 and mn <= 39:         draw3Line(keyline+25+y)     if mn >= 28 and mn <= 32:         draw3Line(keyline+25+y)         draw2Line(keyline+60+y)     if mn >= 21 and mn <= 27:         draw3Line(keyline+25+y)         draw2Line(keyline+60+y)         draw3Line(keyline+85+y)     if mn >= 16 and mn <= 20:         draw3Line(keyline+25+y)         draw2Line(keyline+60+y)         draw3Line(keyline+85+y)         draw2Line(keyline+120+y)     if mn >= 9 and mn <= 15:         draw3Line(keyline+25+y)         draw2Line(keyline+60+y)         draw3Line(keyline+85+y)         draw2Line(keyline+120+y)         draw3Line(keyline+145+y)     if mn >= 4 and mn <= 8:         draw3Line(keyline+25+y)         draw2Line(keyline+60+y)         draw3Line(keyline+85+y)         draw2Line(keyline+120+y)         draw3Line(keyline+145+y)         draw2Line(keyline+180+y)     if mn >= 1 and mn <= 3:         draw3Line(keyline+25+y)         draw2Line(keyline+60+y)         draw3Line(keyline+85+y)         draw2Line(keyline+120+y)         draw3Line(keyline+145+y)         draw2Line(keyline+180+y)         canvas.create_line(70, keyline+205+y, 70+printareawidth, keyline+205+y, width=2)     def draw_paper(y):               #canvas.create_rectangle(55, 55+y, 55+paperwidth, 55+paperheigth+y, fill='black', outline='')             canvas.create_rectangle(40, 50+y, 40+paperwidth, 50+paperheigth+y, fill=papercolor, outline='')             #canvas.create_rectangle(70, 70+y, 70+printareawidth, 70+printareaheight+y, fill='', outline='blue')     ### noteheads ### def black_key_right(x, y):  # center coordinates, radius     x0 = x     y0 = y - 5     x1 = x + 5     y1 = y + 5     canvas.create_line(x0,y-20, x0,y, width=2)     canvas.create_oval(x0, y0, x1, y1, outline='black', fill='black')     def black_key_right_bf(x, y):  # center coordinates, radius     x0 = x     y0 = y - 5     x1 = x - 10     y1 = y + 5     canvas.create_line(x0,y-20, x0,y, width=2)     canvas.create_oval(x0, y0, x1, y1, outline='black', fill='black')     def white_key_right_dga(x, y):  # center coordinates, radius     x0 = x     y0 = y - 5     x1 = x + 10     y1 = y + 5     canvas.create_line(x0,y-20, x0,y, width=2)     canvas.create_oval(x0, y0, x1, y1, outline="black", width=2, fill='white')     def white_key_right_cefb(x, y):  # center coordinates, radius     x0 = x     y0 = y - 3.5     x1 = x + 10     y1 = y + 3.5     canvas.create_line(x0,y-20, x0,y, width=2)     canvas.create_oval(x0, y0, x1, y1, outline="black", width=2, fill='white')     def black_key_left(x, y):  # center coordinates, radius     x0 = x     y0 = y - 5     x1 = x + 5     y1 = y + 5     canvas.create_line(x0,y+20, x0,y, width=2)     canvas.create_oval(x0, y0, x1, y1, outline='black', fill='black') # point     canvas.create_oval(x0+3, y0+4, x1-3, y1-4, outline='white', fill='white') # point     #canvas.create_polygon(x, y+5, x+10, y, x, y-5, outline='black', fill='black') # triangle     #canvas.create_polygon(x, y+5, x+5, y, x, y-5, outline='black', fill='black') # diamond     #canvas.create_oval(x0+3, y0+4, x1-3, y1-4, outline='', fill='white')     def black_key_left_bf(x, y):  # center coordinates, radius     x0 = x     y0 = y - 5     x1 = x - 10     y1 = y + 5     canvas.create_line(x0,y+20, x0,y, width=2)     # canvas.create_polygon(x, y, x+5, y+5, x+10, y, x+5, y-5, outline='black', fill='black') # triangle     #canvas.create_oval(x0-3, y0+4, x1+3, y1-4, outline='', fill='white')     def white_key_left_dga(x, y):  # center coordinates, radius     x0 = x     y0 = y - 5     x1 = x + 10     y1 = y + 5     canvas.create_line(x0,y+20, x0,y, width=2)     canvas.create_oval(x0, y0, x1, y1, outline="black", width=2, fill='white') # point     canvas.create_oval(x0+4, y0+4, x1-4, y1-4, outline="", fill='black') # point     #canvas.create_polygon(x, y, x+5, y+5, x+10, y, x+5, y-5, outline="black", width=2, fill='white') # diamond     #canvas.create_polygon(x, y+5, x+10, y, x, y-5, outline="black", width=2, fill='white') # triangle     #canvas.create_oval(x0+4, y0+4, x1-4, y1-4, outline="", fill='black')     def white_key_left_cefb(x, y):  # center coordinates, radius     x0 = x     y0 = y - 3.5     x1 = x + 10     y1 = y + 3.5     canvas.create_line(x0,y+20, x0,y, width=2)     canvas.create_oval(x0, y0, x1, y1, outline="black", width=2, fill='white') # point     canvas.create_oval(x0+4, y0+4.5, x1-4, y1-4.5, outline="", fill='black') # point     #canvas.create_polygon(x, y, x+5, y+3.5, x+10, y, x+5, y-3.5, outline="black", width=2, fill='white') # diamond     #canvas.create_polygon(x, y+3.5, x+10, y, x, y-3.5, outline="black", width=2, fill='white') # triangle     #canvas.create_oval(x0+4, y0+4.5, x1-4, y1-4.5, outline="", fill='black')     def note_stop(x, y):     x += 3.5     canvas.create_line(x-7,y-5, x, y, x-7,y+5, width=2, smooth=1) # orginal klavarscribo design     #canvas.create_line(x,y, x,y+5, x,y+5, x,y-5, x,y-5, x,y, x,y, x-5,y+5, x-5,y+5, x,y, x,y, x-5,y-5, fill='black', width=1.5) # maybe the pianoscript design     #canvas.create_line(x, y-10, x, y+10, fill='black', width=1.5, dash=3)     def note_y_pos(note, mn, mx, cursy):     '''     This function returns the position of c4 relative to 'cursy'(the y axis staff cursor)     '''       if mx >= 81:         c4 = 230     if mx >= 76 and mx <= 80:         c4 = 195     if mx >= 69 and mx <= 75:         c4 = 170     if mx >= 64 and mx <= 68:         c4 = 135     if mx >= 57 and mx <= 63:         c4 = 110     if mx >= 52 and mx <= 56:         c4 = 75     if mx >= 45 and mx <= 51:         c4 = 50     if mx >= 40 and mx <= 44:         c4 = 15     if mx < 40:         c4 = 15       return (cursy + c4) + (40 - note) * 5     def draw_note_active(x1, x2, y, linenr):     x1 = event_x_pos(x1, linenr)     x2 = event_x_pos(x2, linenr)     canvas.create_rectangle(x1, y-5, x2, y+5, fill=midinotecolor, outline='')#e3e3e3     canvas.create_line(x2, y-5, x2, y+5, width=2)     def event_x_pos(pos, linenr):     newlinepos = newline_pos_list(grid, mpline)     newlinepos.insert(0, 0)     linelength = newlinepos[linenr] - newlinepos[linenr-1]     factor = printareawidth / linelength     pos = pos - newlinepos[linenr-1]     xpos = pos * factor + 70     return xpos     def prepare_file(string, startbracket, endbracket, replace):       def replacer(s, newstring, index, nofail=False):         # raise an error if index is outside of the string         if not nofail and index not in range(len(s)):             raise ValueError("index outside given string")           # if not erroring, but the index is still not in the correct range..         if index < 0:  # add it to the beginning             return newstring + s         if index > len(s):  # add it to the end             return s + newstring           # insert the new string between "slices" of the original         return s[:index] + newstring + s[index + 1:]       findex = -1     for sym in string:         findex += 1         if sym == startbracket:             rindex = findex             for i in string[findex+1:]:                 rindex += 1                 if i == endbracket:                     break                 else:                     string = replacer(string, replace, rindex)     return string     def repeat_dot(x, y):  # center coordinates, radius     x0 = x     y0 = y - 5     x1 = x + 5     y1 = y + 5     canvas.create_oval(x0, y0, x1, y1, outline='black', fill='black')     def addmeas_processor(string):       def measure_length(tsig, tickperquarter):         tsig = tsig.split('/')         w = 0         n = int(tsig[0])         d = int(tsig[1])         if d < 4:             w = (n * d) / (d / 2)         if d == 4:             w = (n * d) / d         if d > 4:             w = (n * d) / (d * 2)         return int(tickperquarter * w)       string = string.split()       length = measure_length(string[0], 256)     grid = string[1]     amount = string[2]       return length, grid, amount     def continuation_dot(x, y):     x0 = x - 2     y0 = y - 2     x1 = x + 2     y1 = y + 2     canvas.create_oval(x0, y0, x1, y1, fill='black', outline='black')     def create_mp_list(string):     string = string.split(' ')     lst = []     for i in string:         lst.append(eval(i))     return lst     def restart_program():     """Restarts the current program.     Note: this function does not return. Any cleanup action (like     saving data) must be done before calling this function."""     save_quest()     python = sys.executable     os.execl(python, python, * sys.argv)       #----------------- # MAIN #-----------------                                 ## score variables ## # titles: title = '' subtitle = '' composer = '' copyright = '' # settings: mpline = 4 systemspacing = 90 scale = 150 titlespace = 60 fillpage = 300 # fillpagetreshold printtitle = 1 printcomposer = 1 printcopyright = 1 measurenumbering = 1 # music: grid = [] msg = [] pagespace = []   scale_S = scale/100 ## constants ## paperheigth = 1123.0723781388479 * (scale_S)  # a4 210x297 mm paperwidth = 794.0915805022156 * (scale_S) marginsx = 40 * (scale_S) marginsy = 60 * (scale_S) printareawidth = paperwidth - marginsx printareaheight = paperheigth - marginsy   renderno = 0     def render(x):     global scale_S, renderno, pagespace, title, subtitle, composer, copyright, mpline, systemspacing, scale, grid, msg, paperheigth, paperwidth, marginsy, marginsx, printareaheight, printareawidth, printtitle, printcomposer, printcopyright, measurenumbering     grid = []     msg = []     title = ''     subtitle = ''     composer = ''     copyright = ''     pagespace = []     mpline = 4     systemspacing = 90     scale = 150     titlespace = 60         def reading():         global scale_S, renderno, pagespace, title, subtitle, composer, copyright, mpline, systemspacing, scale, grid, msg, paperheigth, paperwidth, marginsy, marginsx, printareaheight, printareawidth, printtitle, printcomposer, printcopyright, measurenumbering         file = strip_file_from_comments(get_file())           msgprep = []           # read commands         cmdstring = file         index = -1         for sym in cmdstring:             index += 1             if sym == '~':                 try:                     cmdname = ''                     cmdstr = ''                     for i in cmdstring[index+1:]:                         if i == '{':                             break                         else:                             cmdname += i                     for i in cmdstring[index+1+len(cmdname)+1:]:                         if i == '}':                             break                         else:                             cmdstr += i                     msgprep.append([index, cmdname, cmdstr])                 except: pass             # read music         musicstring = prepare_file(file, '~', '}', ' ')         index = -1         for sym in musicstring:             index += 1             # note             if sym in ['a', 'A', 'b', 'c', 'C', 'd', 'D', 'e', 'f', 'F', 'g', 'G']:                 if musicstring[index+1] in ['0', '1', '2', '3', '4', '5', '6', '7', '8']:                     if musicstring[index+2] == '-':                         msgprep.append([index, 'note', string2pitch(musicstring[index]+musicstring[index+1]), 'bound'])                     else:                         msgprep.append([index, 'note', string2pitch(musicstring[index]+musicstring[index+1]), 'loose'])               # split             if sym == '=':                 msgprep.append([index, 'split'])               # cursor             if sym == '_':                 dig = ''                 for i in musicstring[index+1:]:                     if i in ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']:                         dig += i                     else:                         if dig == '':                             msgprep.append([index, 'cursor', 0])                             break                         else:                               msgprep.append([index, 'cursor', eval(dig)])                             break               # durations             if sym == 'W':                 if musicstring[index+1] == '.' and not musicstring[index+2] == '.':                     msgprep.append([index, 'dur', 'W*1.5'])                 elif musicstring[index+1] == '.' and musicstring[index+2] == '.':                     msgprep.append([index, 'dur', 'W*1.75'])                 else:                     msgprep.append([index, 'dur', 'W'])             if sym == 'H':                 if musicstring[index+1] == '.' and not musicstring[index+2] == '.':                     msgprep.append([index, 'dur', 'H*1.5'])                 elif musicstring[index+1] == '.' and musicstring[index+2] == '.':                     msgprep.append([index, 'dur', 'H*1.75'])                 else:                     msgprep.append([index, 'dur', 'H'])             if sym == 'Q':                 if musicstring[index+1] == '.' and not musicstring[index+2] == '.':                     msgprep.append([index, 'dur', 'Q*1.5'])                 elif musicstring[index+1] == '.' and musicstring[index+2] == '.':                     msgprep.append([index, 'dur', 'Q*1.75'])                 else:                     msgprep.append([index, 'dur', 'Q'])             if sym == 'E':                 if musicstring[index+1] == '.' and not musicstring[index+2] == '.':                     msgprep.append([index, 'dur', 'E*1.5'])                 elif musicstring[index+1] == '.' and musicstring[index+2] == '.':                     msgprep.append([index, 'dur', 'E*1.75'])                 else:                     msgprep.append([index, 'dur', 'E'])             if sym == 'S':                 if musicstring[index+1] == '.' and not musicstring[index+2] == '.':                     msgprep.append([index, 'dur', 'S*1.5'])                 elif musicstring[index+1] == '.' and musicstring[index+2] == '.':                     msgprep.append([index, 'dur', 'S*1.75'])                 else:                     msgprep.append([index, 'dur', 'S'])             if sym == 'T':                 if musicstring[index+1] == '.' and not musicstring[index+2] == '.':                     msgprep.append([index, 'dur', 'T*1.5'])                 elif musicstring[index+1] == '.' and musicstring[index+2] == '.':                     msgprep.append([index, 'dur', 'T*1.75'])                 else:                     msgprep.append([index, 'dur', 'T'])               # rest             if sym == 'r':                 msgprep.append([index, 'rest'])             # sort messages on index to ensure the order         msgprep = sorted(msgprep, key=lambda x: x[0])           #default values for events         hand = 'R'         duration = 256         cursor = 0         for event in msgprep:             # titles             if event[1] == 'title':                 title = event[2]               if event[1] == 'composer':                 composer = event[2]               if event[1] == 'copyright':                 copyright = event[2]               # invisible note             if event[1] == 'invis':                 try:                     note = string2pitch(event[2])                     msg.append([index, 'invis', cursor, 'dummy', note, hand])                 except:                     ...               # printtitle             if event[1] == 'printtitle':                 try:                     val = eval(event[2])                     printtitle = val                 except:                     ...               # printcomposer             if event[1] == 'printcomposer':                 try:                     val = eval(event[2])                     printcomposer = val                 except:                     ...               # printcopyright             if event[1] == 'printcopyright':                 try:                     val = eval(event[2])                     printcopyright = val                 except:                     ...               # measurenumbering             if event[1] == 'measurenumbering':                 try:                     val = eval(event[2])                     measurenumbering = val                 except:                     ...               # addmeas             if event[1] == 'meas':                 length, grids, amount = addmeas_processor(event[2])                 grid.append([length, eval(grids), eval(amount)])               # bpm             if event[1] == 'bpm':                 msg.append([index, 'bpm', cursor, event[2]])               # hand             if event[1] == 'hand':                 hand = event[2]               # mpline             if event[1] == 'mpline':                 try:                     mpline = create_mp_list(event[2])                 except: pass               # systemspace             if event[1] == 'systemspace':                 try: systemspacing = eval(event[2])                 except: pass               # scale             if event[1] == 'scale':                 scale = eval(event[2])                 scale_S = scale/100                 paperheigth = root.winfo_fpixels('1m') * 297 * (scale_S)  # a4 210x297 mm                 paperwidth = root.winfo_fpixels('1m') * 210 * (scale_S)                 marginsx = 40 * (scale_S)                 marginsy = 60 * (scale_S)                 printareawidth = paperwidth - marginsx                 printareaheight = paperheigth - marginsy               # cursor             if event[1] == 'cursor':                 if event[2] == 0:                     cursor -= duration                 else:                     try: cursor = barline_pos_list(grid)[event[2]-1]                     except IndexError: print('ERROR: cursor out of range; try increasing the measure amount')               # duration             if event[1] == 'dur':                 duration = duration_converter(event[2])               # note             if event[1] == 'note':                 msg.append([event[0], 'note', cursor, cursor+duration, event[2], hand, event[3]])                 cursor += duration               # rest             if event[1] == 'rest':                 cursor += duration               # split             if event[1] == 'split':                 notes = []                 time = 0                 for i in reversed(msg):                     if i[1] == 'note' and notes == []:                         notes.append(i[4])                         time = i[2]                     if i[1] == 'note' and i[2] == time:                         notes.append(i[4])                     elif i[1] == 'note' and i[2] != time:                         break                 for i in notes:                     msg.append([event[0], 'split', cursor, cursor+duration, i])                 cursor += duration               # bar (all bartypes)             if event[1] == 'bar':                 if event[2] == '|:':                     msg.append([event[0], 'bgn_rpt', cursor])                 if event[2] == ':|':                     msg.append([event[0], 'end_rpt', cursor-0.1])                 if event[2] == '|':                     msg.append([event[0], 'barline', cursor])                 if event[2] == ';':                     msg.append([event[0], 'smalldash', cursor])                 if event[2] == '[':                     msg.append([event[0], 'bgn_hook', cursor])                 if event[2] == ']':                     msg.append([event[0], 'end_hook', cursor-0.1])               # text (all types)             if event[1] == 'text':                 if event[2] == 'f':                     msg.append([event[0], 'dynamic', cursor, event[2]])                 elif event[2] == 'ff':                     msg.append([event[0], 'dynamic', cursor, event[2]])                 elif event[2] == 'fff':                     msg.append([event[0], 'dynamic', cursor, event[2]])                 elif event[2] == 'ffff':                     msg.append([event[0], 'dynamic', cursor, event[2]])                 elif event[2] == 'p':                     msg.append([event[0], 'dynamic', cursor, event[2]])                 elif event[2] == 'pp':                     msg.append([event[0], 'dynamic', cursor, event[2]])                 elif event[2] == 'ppp':                     msg.append([event[0], 'dynamic', cursor, event[2]])                 elif event[2] == 'pppp':                     msg.append([event[0], 'dynamic', cursor, event[2]])                 elif event[2] == 'mf':                     msg.append([event[0], 'dynamic', cursor, event[2]])                 elif event[2] == 'mf':                     msg.append([event[0], 'dynamic', cursor, event[2]])                 else:                     msg.append([event[0], 'text', cursor, event[2]])             if event[1] == 'textB':                 msg.append([event[0], 'textB', cursor, event[2]])             if event[1] == 'textI':                 msg.append([event[0], 'textI', cursor, event[2]])                                                 #adding barline messages with correct begin time         for barline in barline_pos_list(grid):             msg.insert(0, ['index', 'barline', barline])             # adding grid messages         icount = -1         cursor = 0         grdpart = []         for i in grid:             oldpos = 0             for add in range(i[2]):                 length = i[0]                 divide = i[1]                 if divide == 0:                     divide = 1                 amount = i[1]                 for line in range(amount):                     gridpart = length / divide                     time = cursor + (gridpart * (line+1))                     grdpart.append(['dashline', time])                 cursor += length           for barline in grdpart:             msg.insert(0, ['index', 'dash', barline[1]])             # sort on starttime of event to get the barlines in the right order         msg.sort(key=lambda x: x[2])             ##  placing messages in lists of 'lines' ##         newlinepos = newline_pos_list(grid, mpline)         mem = 0         msgs = msg         msg = []         bottpos = 0         for newln in newlinepos:             hlplst = []             for note in msgs:                 if note[2] >= bottpos and note[2] < newln:                     hlplst.append(note)             msg.append(hlplst)             bottpos = newln             ## fitting the 'lines' into pages ##         lineheight = []         for line in msg:               notelst = []             for note in line:                 if note[1] == 'note' or note[1] == 'split' or note[1] == 'invis':                     notelst.append(note[4])                 else:                     pass             try: lineheight.append(staff_height(min(notelst), max(notelst)))             except ValueError: lineheight.append(10)           msgs = msg         msg = []         cursy = 40 * (scale_S)         pagelist = []         icount = 0         resspace = 0         for line, height in zip(msgs, lineheight):             icount += 1             cursy += height + systemspacing             if icount == len(lineheight):#if this is the last iteration                 if cursy <= printareaheight:                     pagelist.append(line)                     msg.append(pagelist)                     resspace = printareaheight - cursy                     pagespace.append(resspace)                     break                 elif cursy > printareaheight:                     msg.append(pagelist)                     pagelist = []                     pagelist.append(line)                     msg.append(pagelist)                     pagespace.append(resspace)                     cursy = 0                     resspace = printareaheight - cursy                     pagespace.append(resspace)                     break                 else:                     pass             else:                 if cursy <= printareaheight:#does fit on paper                     pagelist.append(line)                     resspace = printareaheight - cursy                 elif cursy > printareaheight:#does not fit on paper                     msg.append(pagelist)                     pagelist = []                     pagelist.append(line)                     cursy = 0                     cursy += height + systemspacing                     pagespace.append(resspace)                 else:                     pass         reading()                                     def drawing():         canvas.delete('all')           def paper():               counter = 0             cursy = 0               for page in msg:                 counter += 1                 draw_paper(cursy)                 if printcopyright == 1:                     canvas.create_text(80, cursy+20+paperheigth, text=f'page {counter} of {len(msg)} | {title} | {copyright} - PianoScript sheet', anchor='w', font=("Courier", 16, "normal"))                 #canvas.create_rectangle(70, cursy+5+paperheigth, 70+printareawidth, cursy+35+paperheigth)                   cursy += paperheigth + 50               if printtitle == 1:                 canvas.create_text(70, 90, text=title, anchor='w', font=("Courier", 20, "normal"))             if printcomposer == 1:                 canvas.create_text(70+printareawidth, 90, text=composer, anchor='e', font=("Courier", 20, "normal"))             #canvas.create_line(10, 400, 10, 400+pagespace[1])           def note_active():             cursy = 90 + titlespace             lcounter = 0             pcounter = 0             for page in msg:                 pcounter += 1                 for line in page:                     lcounter += 1                     #create linenotelist                     linenotelist = []                     for note in line:                         if note[1] == 'note' or note[1] == 'split' or note[1] == 'invis':                             linenotelist.append(note[4])                     if linenotelist:                         minnote = min(linenotelist)                         maxnote = max(linenotelist)                     else:                         minnote = 40                         maxnote = 44                     staffheight = staff_height(minnote, maxnote)                       for note in line:                         if note[1] == 'note':                             draw_note_active(note[2], note[3], note_y_pos(note[4], minnote, maxnote, cursy), lcounter)                             prevnote = note[3]                         if note[1] == 'split':                             draw_note_active(note[2]-10, note[3], note_y_pos(note[4], minnote, maxnote, cursy), lcounter)                             continuation_dot(event_x_pos(note[2], lcounter)+5, note_y_pos(note[4], minnote, maxnote, cursy))                       if len(page) == 1:                         cursy += staffheight + systemspacing + (pagespace[pcounter-1] / (len(page)))                     elif pagespace[pcounter-1] < fillpage:                         cursy += staffheight + systemspacing + (pagespace[pcounter-1] / (len(page)-1))                     elif pagespace[pcounter-1] >= fillpage:                           cursy += staffheight + systemspacing                   cursy = (paperheigth+50) * pcounter + 100             def barlines_and_text():             cursy = 90 + titlespace             pcounter = 0             lcounter = 0             bcounter = 0               for page in msg:                 pcounter += 1                     for line in page:                     lcounter += 1                       #create linenotelist                     linenotelist = []                     for note in line:                         if note[1] == 'note'  or note[1] == 'split' or note[1] == 'invis':                             linenotelist.append(note[4])                     if linenotelist:                         maxnote = max(linenotelist)                         minnote = min(linenotelist)                     else:                         maxnote = 44                         minnote = 40                       staffheight = staff_height(minnote, maxnote)                       for note in line:                           if note[1] == 'barline':                             bcounter += 1                             canvas.create_line(event_x_pos(note[2], lcounter), cursy, event_x_pos(note[2], lcounter), cursy+staffheight, width=2)                             if measurenumbering == 1:                                 canvas.create_text(event_x_pos(note[2]+12.5, lcounter), cursy-20, text=bcounter, anchor='w', font=('Terminal', 14, 'normal'))                           if note[1] == 'bgn_rpt':                             canvas.create_line(event_x_pos(note[2], lcounter), cursy, event_x_pos(note[2], lcounter), cursy+staffheight+40, width=2)                             repeat_dot(event_x_pos(note[2], lcounter)+5, cursy+staffheight+15)                             repeat_dot(event_x_pos(note[2], lcounter)+5, cursy+staffheight+30)                           if note[1] == 'end_rpt':                             canvas.create_line(event_x_pos(note[2], lcounter), cursy, event_x_pos(note[2], lcounter), cursy+staffheight+40, width=2)                             repeat_dot(event_x_pos(note[2], lcounter)-12.5, cursy+staffheight+15)                             repeat_dot(event_x_pos(note[2], lcounter)-12.5, cursy+staffheight+30)                           if note[1] == 'bgn_hook':                             canvas.create_line(event_x_pos(note[2], lcounter), cursy, event_x_pos(note[2], lcounter), cursy+staffheight+40,                                 event_x_pos(note[2], lcounter), cursy+staffheight+40, event_x_pos(note[2], lcounter)+80, cursy+staffheight+40, width=2)                           if note[1] == 'end_hook':                             canvas.create_line(event_x_pos(note[2], lcounter), cursy, event_x_pos(note[2], lcounter), cursy+staffheight+40,                                 event_x_pos(note[2], lcounter), cursy+staffheight+40, event_x_pos(note[2], lcounter)-80, cursy+staffheight+40, width=2)                           if note[1] == 'textB':                             canvas.create_text(event_x_pos(note[2], lcounter)+10, cursy+staffheight+25, text=note[3], anchor='w', font='Helvetica 18 bold')                           if note[1] == 'textI':                             canvas.create_text(event_x_pos(note[2], lcounter)+10, cursy+staffheight+25, text=note[3], anchor='w', font='Helvetica 18 italic')                           if note[1] == 'text':                             canvas.create_text(event_x_pos(note[2], lcounter)+10, cursy+staffheight+25, text=note[3], anchor='w', font='Helvetica 18')                           if note[1] == 'bpm':                             canvas.create_text(event_x_pos(note[2], lcounter)+10, cursy+staffheight+25, text=f'bpm = {note[3]}', anchor='w', font='Helvetica 18')                         canvas.create_line(70+printareawidth, cursy, 70+printareawidth, cursy+staffheight, width=2)                       if lcounter == len(newline_pos_list(grid, mpline)):                         canvas.create_line(70+printareawidth, cursy, 70+printareawidth, cursy+staffheight, width=5)                         if len(page) == 1:                         cursy += staffheight + systemspacing + (pagespace[pcounter-1] / (len(page)))                     elif pagespace[pcounter-1] < fillpage:                         cursy += staffheight + systemspacing + (pagespace[pcounter-1] / (len(page)-1))                     elif pagespace[pcounter-1] >= fillpage:                         cursy += staffheight + systemspacing                   cursy = (paperheigth+50) * pcounter + 100             def staff():             cursy = 90 + titlespace             pcounter = 0             lcounter = 0             for page in msg:                 pcounter += 1                     for line in page:                     lcounter += 1                     #create linenotelist                     linenotelist = []                     for note in line:                         if note[1] == 'note' or note[1] == 'split' or note[1] == 'invis':                             linenotelist.append(note[4])                     if linenotelist:                         maxnote = max(linenotelist)                         minnote = min(linenotelist)                     else:                         maxnote = 44                         minnote = 40                       draw_staff_lines(cursy, minnote, maxnote)                     #canvas.create_text(25, cursy+5, text=lcounter)                     staffheight = staff_height(minnote, maxnote)                       if len(page) == 1:                         cursy += staffheight + systemspacing + (pagespace[pcounter-1] / (len(page)))                     elif pagespace[pcounter-1] < fillpage:                         cursy += staffheight + systemspacing + (pagespace[pcounter-1] / (len(page)-1))                     elif pagespace[pcounter-1] >= fillpage:                         cursy += staffheight + systemspacing                   cursy = (paperheigth+50) * pcounter + 100             def note_start():             black = [2, 5, 7, 10, 12, 14, 17, 19, 22, 24, 26, 29, 31, 34, 36, 38, 41, 43, 46, 48, 50, 53, 55, 58, 60, 62, 65, 67, 70, 72, 74, 77, 79, 82, 84, 86]             white_dga = [6,11,13,18,23,25,30,35,37,42,47,49,54,59,61,66,71,73,78,83,85,88]             white_be = [3,8,15,20,27,32,39,44,51,56,63,68,75,80,87] # possible typos             white_cf = [1,4,9,16,21,28,33,40,45,52,57,64,69,76,81] # possible typos               cursy = 90 + titlespace             pcounter = 0             lcounter = 0             for page in msg:                 pcounter += 1                   for line in page:                     lcounter += 1                         # create max/min note variables for line                     linenotelist = []                     for note in line:                         if note[1] == 'note' or note[1] == 'split' or note[1] == 'invis':                             linenotelist.append(note[4])                     if linenotelist:                         minnote = min(linenotelist)                         maxnote = max(linenotelist)                     else:                         minnote = 40                         maxnote = 44                       staffheight = staff_height(minnote, maxnote)                           notelst = []                     for note in line:                         if note[1] == 'note':                             notelst.append(note)                       notelst.sort(key=lambda x: x[0])                         old_x = 0                     old_y = 0                     boundloose = 0                       for note in notelst:                                                   if note[1] == 'note':                             #note_stop(event_x_pos(note[3], lcounter), note_y_pos(note[4], minnote, maxnote, cursy))                               if note[4] in white_dga:                                   if note[5] == 'R':                                     white_key_right_dga(event_x_pos(note[2], lcounter), note_y_pos(note[4], minnote, maxnote, cursy))                                     for dot in notelst:                                         if round(dot[2], 0) < round(note[2], 0) and round(dot[3], 0) > round(note[2], 0) and dot[5] == 'R':                                             continuation_dot(event_x_pos(note[2], lcounter)+5, note_y_pos(dot[4], minnote, maxnote, cursy))                                 elif note[5] == 'L':                                     white_key_left_dga(event_x_pos(note[2], lcounter), note_y_pos(note[4], minnote, maxnote, cursy))                                     for dot in notelst:                                         if round(dot[2], 0) < round(note[2], 0) and round(dot[3], 0) > round(note[2], 0) and dot[5] == 'L':                                             continuation_dot(event_x_pos(note[2], lcounter)+5, note_y_pos(dot[4], minnote, maxnote, cursy))                                 else:                                     pass                               if note[4] in white_cf:                                   if note[5] == 'R':                                     white_key_right_cefb(event_x_pos(note[2], lcounter), note_y_pos(note[4], minnote, maxnote, cursy)-1.5)                                     for dot in notelst:                                         if round(dot[2], 0) < round(note[2], 0) and round(dot[3], 0) > round(note[2], 0) and dot[5] == 'R':                                             continuation_dot(event_x_pos(note[2], lcounter)+5, note_y_pos(dot[4], minnote, maxnote, cursy))                                 elif note[5] == 'L':                                     white_key_left_cefb(event_x_pos(note[2], lcounter), note_y_pos(note[4], minnote, maxnote, cursy)-1.5)                                     for dot in notelst:                                         if round(dot[2], 0) < round(note[2], 0) and round(dot[3], 0) > round(note[2], 0) and dot[5] == 'L':                                             continuation_dot(event_x_pos(note[2], lcounter)+5, note_y_pos(dot[4], minnote, maxnote, cursy))                                 else:                                     pass                               if note[4] in white_be:                                   if note[5] == 'R':                                     white_key_right_cefb(event_x_pos(note[2], lcounter), note_y_pos(note[4], minnote, maxnote, cursy)+1.5)                                     for dot in notelst:                                         if round(dot[2], 0) < round(note[2], 0) and round(dot[3], 0) > round(note[2], 0) and dot[5] == 'R':                                             continuation_dot(event_x_pos(note[2], lcounter)+5, note_y_pos(dot[4], minnote, maxnote, cursy))                                 elif note[5] == 'L':                                     white_key_left_cefb(event_x_pos(note[2], lcounter), note_y_pos(note[4], minnote, maxnote, cursy)+1.5)                                     for dot in notelst:                                         if round(dot[2], 0) < round(note[2], 0) and round(dot[3], 0) > round(note[2], 0) and dot[5] == 'L':                                             continuation_dot(event_x_pos(note[2], lcounter)+5, note_y_pos(dot[4], minnote, maxnote, cursy))                                 else:                                     pass                       for note in notelst:                                                   if note[1] == 'note':                             if note[4] in black:                                     if note[5] == 'R':                                     black_key_right(event_x_pos(note[2], lcounter), note_y_pos(note[4], minnote, maxnote, cursy))                                     for dot in notelst:                                         if round(dot[2], 0) < round(note[2], 0) and round(dot[3], 0) > round(note[2], 0) and dot[5] == 'R':                                             continuation_dot(event_x_pos(note[2], lcounter)+5, note_y_pos(dot[4], minnote, maxnote, cursy))                                 elif note[5] == 'L':                                     black_key_left(event_x_pos(note[2], lcounter), note_y_pos(note[4], minnote, maxnote, cursy))                                     for dot in notelst:                                         if round(dot[2], 0) < round(note[2], 0) and round(dot[3], 0) > round(note[2], 0) and dot[5] == 'L':                                             continuation_dot(event_x_pos(note[2], lcounter)+5, note_y_pos(dot[4], minnote, maxnote, cursy))                                 else:                                     pass                                 if boundloose == 1:                                 if note[5] == 'R':                                     canvas.create_line(old_x, old_y, event_x_pos(note[2], lcounter), note_y_pos(note[4], minnote, maxnote, cursy)-20, width=3)                                 elif note[5] == 'L':                                     canvas.create_line(old_x, old_y, event_x_pos(note[2], lcounter), note_y_pos(note[4], minnote, maxnote, cursy)+20, width=3)                               if note[6] == 'bound':                                 boundloose = 1                                 old_x = event_x_pos(note[2], lcounter)                                 if note[5] == 'R':                                     old_y = note_y_pos(note[4], minnote, maxnote, cursy)-20                                 elif note[5] == 'L':                                     old_y = note_y_pos(note[4], minnote, maxnote, cursy)+20                                 else:                                     pass                             elif note[6] == 'loose':                                 boundloose = 0                             else:                                 pass                           if len(page) == 1:                         cursy += staffheight + systemspacing + (pagespace[pcounter-1] / (len(page)))                     elif pagespace[pcounter-1] < fillpage:                         cursy += staffheight + systemspacing + (pagespace[pcounter-1] / (len(page)-1))                     elif pagespace[pcounter-1] >= fillpage:                         cursy += staffheight + systemspacing                   cursy = (paperheigth+50) * pcounter + 100             def grid_lines():             cursy = 90 + titlespace             pcounter = 0             lcounter = 0             for page in msg:                 pcounter += 1                   for line in page:                     lcounter += 1                       # create max/min note variables for line                     linenotelist = []                     for note in line:                         if note[1] == 'note' or note[1] == 'split' or note[1] == 'invis':                             linenotelist.append(note[4])                     if linenotelist:                         minnote = min(linenotelist)                         maxnote = max(linenotelist)                     else:                         minnote = 40                         maxnote = 44                       staffheight = staff_height(minnote, maxnote)                       for gridline in line:                         if gridline[1] == 'dash':                             canvas.create_line(event_x_pos(gridline[2],                                                 lcounter),                                                 cursy,                                                 event_x_pos(gridline[2],                                                 lcounter),                                                 cursy+staffheight,                                                 dash=(6, 6))                         if gridline[1] == 'smalldash':                             canvas.create_line(event_x_pos(gridline[2],                                                 lcounter),                                                 cursy+(staffheight*0.20),                                                 event_x_pos(gridline[2],                                                 lcounter),                                                 cursy+staffheight-(staffheight*0.20),                                                 dash=(2, 2))                       if len(page) == 1:                         cursy += staffheight + systemspacing + (pagespace[pcounter-1] / (len(page)))                     elif pagespace[pcounter-1] < fillpage:                         cursy += staffheight + systemspacing + (pagespace[pcounter-1] / (len(page)-1))                     elif pagespace[pcounter-1] >= fillpage:                         cursy += staffheight + systemspacing                   cursy = (paperheigth+50) * pcounter + 100             # function order         paper()         note_active()         barlines_and_text()         staff()         grid_lines()         note_start()       drawing()     renderno += 1     canvas.create_text(20, 20, text='render: '+str(renderno))     canvas.configure(scrollregion=bbox_offset(canvas.bbox("all")))     return len(msg)                       #------------------ # EXPORT FUNCTIONS #------------------     def exportPS():     print('exportPS')       f = filedialog.asksaveasfile(mode='w', parent=root, filetypes=[("Postscript","*.ps")], initialfile=title)       if f:         name = f.name[:-3]         counter = 0           for export in range(render('q')):             counter += 1             print('printing page ', counter)             canvas.postscript(file=f"{name} p{counter}.ps", colormode='gray', x=40, y=50+(export*(paperheigth+50)), width=paperwidth, height=paperheigth, rotate=False)           os.remove(f.name)       else:           pass       return           def exportPDF():     print('exportPDF')     f = filedialog.asksaveasfile(mode='w', parent=root, filetypes=[("pdf file","*.pdf")], initialfile=title, initialdir='~/Desktop')     if f:         n = render('q')         pslist = []         for rend in range(n):             canvas.postscript(file=f"tmp{rend}.ps", x=40, y=50+(rend*(paperheigth+50)), width=paperwidth, height=paperheigth, rotate=False)             process = subprocess.Popen(["ps2pdfwr", "-sPAPERSIZE=a4", "-dFIXEDMEDIA", "-dEPSFitPage", f"tmp{rend}.ps"])             process.wait()             os.remove(f"tmp{rend}.ps")             pslist.append(f"tmp{rend}.pdf")             cmd = 'pdfunite '             for i in range(len(pslist)):                 cmd += pslist[i] + ' '             cmd += f'"{f.name}"'             process = subprocess.Popen(cmd, shell=True)             process.wait()         for x in pslist:             os.remove(x)         return                   else:         return   # Menu menubar = Menu(root, relief='flat', bg=_bg) root.config(menu=menubar)   fileMenu = Menu(menubar, tearoff=0)   fileMenu.add_command(label='new', command=new_file) fileMenu.add_command(label='open', command=open_file) fileMenu.add_command(label='save', command=save_file) fileMenu.add_command(label='save as', command=save_as)   fileMenu.add_separator()   submenu = Menu(fileMenu, tearoff=0) submenu.add_command(label="postscript", command=exportPS) submenu.add_command(label="pdf (linux only)", command=exportPDF) fileMenu.add_cascade(label='export', menu=submenu, underline=0)   fileMenu.add_separator()   fileMenu.add_command(label="Preferences", underline=0, command=def_score_settings) fileMenu.add_command(label="Refresh app", underline=0, command=restart_program)   fileMenu.add_separator()   fileMenu.add_command(label="Exit", underline=0, command=quit_editor) menubar.add_cascade(label="Menu", underline=0, menu=fileMenu)   def autosave():     root.after(60000, autosave)     if filepath == 'New':         return     save_file()             new_file() autosave() root.bind('<Key>', render) root.bind('<F11>', fullscreen) root.mainloop()

moonlight.pnoscript:

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//titles: ~title{Moonlight Sonata} ~composer{L. Beethoven} ~copyright{public license 2021}   //grid: ~meas{4/4 4 69}   //settings: ~mpline{5} ~systemspace{70}         //music:   // M1-20 // {     ~hand{R} _1 ~text{4/4}~dur{Q/3}G3C4e4 G3C4e4 G3C4e4 G3C4e4 _2 G3C4e4 G3C4e4 G3C4e4 G3C4e4 _3 a3C4e4 a3C4e4 a3d4F4 a3d4F4 _4 G3c4F4 G3C4e4 G3C4D4 F3c4D4   _5 e3G3C4 G3C4e4 G3C4e4 G3C4e4 Q_ ~dur{E+S}G4 SG4 __; _6 ~dur{Q/3}G3D4F4 G3D4F4 G3D4F4 G3D4F4 _6 ~dur{H+Q}G4 ~dur{E+S}G4 SG4 _6 QrrrEr; _7 ~dur{Q/3}G3C4e4 G3C4e4 a3C4F4 a3C4F4 _7 HG4 a4 _8 ~dur{Q/3}G3b3e4 G3b3e4 a3b3D4 a3b3D4 _8 HG4 QF4 b4   _9 ~dur{Q/3}G3b3e4 G3b3e4 G3b3e4 G3b3e4 _9 ~dur{Q/3*2}e4 _10 ~dur{Q/3}g3b3e4 g3b3e4 g3b3e4 g3b3e4 Q_ ~dur{E+S}g4 Sg4 __; _11 ~dur{Q/3}g3b3f4 g3b3f4 g3b3f4 g3b3f4 _11 ~dur{H+Q}g4 ~dur{E+S}g4 Sg4 __; _12 ~dur{Q/3}g3c4e4 g3b3e4 g3C4e4 F3C4e4 _12 ~dur{H+Q}g4 QF4   _13 ~dur{Q/3}F3b3d4 F3b3d4 g3b3C4 e3b3C4 _13 HF4 Qg4 e4 _14 ~dur{Q/3}F3b3d4 F3b3d4 F3A3C4 F3A3C4 _14 HF4 F4 _15 ~dur{Q/3}b3d4F4 b3d4F4 b3D4F4 b3D4F4 _15 Qb3 r r b4 _16 ~dur{Q/3}b3e4g4 b3e4g4 b3e4g4 b3e4g4 _16 ~dur{H+Q}c5 QA4   _17 ~dur{Q/3}b3D4F4 b3D4F4 b3D4F4 b3D4F4 _17 ~dur{H+Q}b4 Qb4 _18 ~dur{Q/3}b3e4g4 b3e4g4 b3e4g4 b3e4g4 _18 ~dur{H+Q}c5 QA4 _19 ~dur{Q/3}b3D4F4 b3D4F4 b3d4f4 b3d4f4 _19 Hb4 b4 _20 ~dur{Q/3}b3C4G4 b3C4G4 a3C4F4 a3C4F4 _20 Hb4 a4     ~hand{L} _1 WC2_C3 _2 b1_b2 _3 Ha1_a2 F1_F2 _4 G1_G2 G1_G2   _5 WC2_G2_C3 _6 c2_G2_c3 _7 HC2_C3 F1_F2 _8 b1_b2 b1_b2   _9 We2_e3 _10 e2_e3 _11 d2_d3 _12 Qc2_c3 b1_b2 HA1_A2   _13 Hb1_b2 Qe2 g2 _14 HF2 F2_F1 _15 Wb1 Q= _15 Wb2 _16 Q= e2_e3 g2_g3 e2_e3   _17 Wb1 Q= _17 Wb2 Q= _18 Qr e2_e3 g2_g3 e2_e3 _19 Hb1_b2 G1_G2 _20 f1_f2 F1_F2     // M21-40 // ~hand{R} _21 ~dur{Q/3}g3b3d4 g3b3d4 F3a3D4 F3a3D4 _21 Hg4 F4 _22 ~dur{Q/3}C3F3a3 C3F3a3 C3F3G3 C3f3G3 _22 HC4 QC4 C4 _23 ~dur{Q/3}F3a3C4 a3C4F4 C4F4a4 C4F4a4 _23 ~dur{H+Q}r ~dur{E+S}C5 SC5 __; _24 ~dur{Q/3}C4G4b4 C4G4b4 C4G4b4 C4G4b4 _24 ~dur{H+Q}r ~dur{E+S}C5 SC5 __;   _25 ~dur{Q/3}C4F4a4 C4F4a4 c4F4a4 C4F4a4 _25 HC5 <Q>c5 C5 _26 ~dur{Q/3}D4F4G4 D4F4G4 D4F4G4 D4F4G4 _26 ~dur{H+Q}D5 QD5 _27 ~dur{Q/3}e4G4C5 e4G4C5 D4F4a4 C4e4A4 _27 He5 QD5 C5 _28 ~dur{Q/3}c5 c4D4 G4 c4D4 a4 c4D4 F4 c4D4 _28 Qr G4 a4 F4   _29 ~dur{Q/3}r c4D4 G3 c4D4 a3 c4D4 F3 c4D4 _29 Qr G3 a3 F3 _30 ~dur{Q/3}e3 e4G4 C5 e4G4 e5 e4G4 C5 e4G4 _30 Qr C5 e5 C5 _31 ~dur{Q/3}r e3G3 C4e3G3 e4e3G3 C4e3G3 _31 Qr C4 e4 C4 _32 ~dur{Q/3}D3a3F3c4a3D4c4F4D4a4F4c5   _33 e3C4G3e4C4G4e4C5G4e5C5G4 _34 C4g4e4A4g4C5A4e5C5g5e5A5 _35 F4c5a4D5c5F5D5a5F5c6a5D6 _36 c6F5a5 D5F5c5 D5a4c5 F4a4D4   _37 F4c4D4 a3c4F3 a3rF3 rF3a3 _37 Hr ~dur{Q/3}r ~dur{Q/3*2}D3 QC3 _38 ~dur{Q/3}c3F3G3 a3G3F3 rF3a3 rF3a3 _38 Hc3 QD3 C3 _39 ~dur{Q/3}c3F3G3 a3G3F3 rF3a3 rF3a3 _39 Hc3 Qd3 C3 _40 ~dur{Q/3}c3F3G3 a3G3F3 C3e3C4 C3e3C4 _40 Hc3     ~hand{L} _21 Hb1_b2 c2_c3 _22 C2 C2 _23 WF1_F2_C2 _24 f2_C3_f3   _25 HF2_F3 QD2_D3 C2_C3 _26 ~dur{H+Q}c2_G2_c3 Qc2_G2_c3 _27 HC2_C3_G2 QF1_F2 g1_g2 _28 WG1_G2   _29 G1_G2 _30 G1_G2 _31 G1_G2 _32 G1_G2   _33 G1_G2 _34 G1_G2 _35 G1 == _35 G2 _36 =   _37 = _38 G1_G2 _39 G1_G2 _40 HG1_G2 a1_a2     // M41-60 // ~hand{R} _41 ~dur{Q/3}D3a3C4 D3a3C4 D3G3c4 D3F3c4 _42 ~dur{Q/3}e3G3C4 G3C4e4 G3C4e4 G3C4e4 _42 Qrrr ~dur{E+S}G4 SG4 __; _43 ~dur{Q/3}G3D4F4 G3D4F4 G3D4F4 G3D4F4 _43 ~dur{H+Q}G4 ~dur{E+S}G4 SG4 __; _44 ~dur{Q/3}G3C4e4 G3C4e4 a3C4F4 a3C4F4 _44 HG4 a4   _45 ~dur{Q/3}G3b3e4 G3b3e4 a3b3D4 a3b3D4 _45 HG4 QF4 b4 _46 ~dur{Q/3}G3b3e4 b3e4G4 b3e4G4 b3e4G4 _46 Qe4 r r ~dur{E+S}b4 Sb4 __; _47 ~dur{Q/3}b3F4a4 b3F4a4 b3F4a4 b3F4a4 _47 ~dur{H+Q}b4 ~dur{E+S}b4 Sb4 __; _48 ~dur{Q/3}b3e4G4 b3e4G4 c4F4G4 C4e4G4 _48 Hb4 Qc5 C5   _49 ~dur{Q/3}D4F4G4 D4F4G4 e4G4C5 e4G4C5 _49 HD5 e5 _50 ~dur{Q/3}d4F4a4 d4F4a4 c4F4G4 c4F4G4 _50 Hd5 c5 _51 ~dur{Q/3}C4e4G4 C4e4G4 C4f4G4 C4f4G4 _51 ~dur{H+Q}C5 QC5 _52 ~dur{Q/3}C4F4a4 C4F4a4 C4F4a4 C4F4a4 _52 ~dur{H+Q}d5 Qc5   _53 ~dur{Q/3}C4f4G4 C4f4G4 C4f4G4 C4f4G4 _53 ~dur{H+Q}C5 QC5 _54 ~dur{Q/3}C4F4a4 C4F4a4 C4F4a4 C4F4a4 _54 ~dur{H+Q}d5 Qc5 _55 ~dur{Q/3}C4f4G4 C4f4G4 C4F4a4 C4F4a4 _55 HC5 C5 _56 ~dur{Q/3}b3F4a4 b3F4a4 b3F4a4 b3e4G4 _56 ~dur{H+Q}b4 Qb4   _57 ~dur{Q/3}a3e4G4 a3D4F4 G3D4F4 G3C4e4 _57 Qa4 a4 G4 G4 _58 ~dur{Q/3}F3C4D4 F3C4D4 G3C4D4 a3C4D4 _58 HF4 QG4 a4 _59 ~dur{Q/3}G3C4e4 G3C4e4 G3c4D4 G3c4D4 _59 HG4 G4 _60 ~dur{Q/3}e3G3C4 G3C4e4 G3C4e4 G3C4e4 _60 QC4     ~hand{L} _41 HF1_F2 G1_G2 _42 WC2_G2_C3 _43 c2_G2_c3 _44 HC2_C3 F1_F2   _45 b1_b2 b1_b2 _46 We2_e3 _47 D2_D3 _48 He2_e3 QD2_D3 C2_C3   _49 Hc2_G2_c3 C2_G2_C3 _50 F1_F2 G1_G2 _51 ~dur{W+Q}C2_C3 _52 Qr F2_F3 a2_a3 F2_F3   _53 ~dur{W+Q}C2_C3 _54 Qr F2_F3 a2_a3 F2_F3 _55 HC2_C3 F1_F2 _56 ~dur{H+Q}D2_D3 Qe2_e3   _57 C2_C3 D2_D3 c2_c3 C2_C3 _58 Ha1_a2 QG1_G2 F1_F2 _59 HG1_G2 G1_G2 _60 WC2 _60 ~dur{H+Q}G2 ~dur{E+S}G2 SG2 __;     // M61-69 ~hand{R} _61 ~dur{Q/3}G3D4F4 G3D4F4 G3D4F4 G3D4F4 _62 G3e4C4 G4e4C5 G4e5C5 G5e5C5 _63 c5D5a4 c5F4a4 D4F4a3 c4G3F3 ___ Qc4 _64 ~dur{Q/3}e3_C4e4C4 G4e4C5 G4e5C5 G5e5C5   _65 c5D5a4 c5F4a4 D4F4a3 c4G3F3 ___ Qc4 _66 ~dur{Q/3}e3_C4G3C4 e4C4G3 r e3G3 C4G3e3 _66 He3 _67 ~dur{Q/3}r C3e3 G3e3C3 G2C3G2 e2G2e2 _68 Hr e3_G3_C4   _69 We3_G3_C4     ~hand{L} _61 Wc2 _61 ~dur{H+Q}G2 ~dur{E+S}G2 SG2 __; _62 WC2 _62 ~dur{H+Q}G2 ~dur{E+S}G2 SG2 __; _63 WG1 _63 ~dur{H+Q}G2 ~dur{E+S}G2 SG2 __; _64 WC2 _64 ~dur{H+Q}G2 ~dur{E+S}G2 SG2 __;   _65 WG1 _65 ~dur{H+Q}G2 ~dur{E+S}G2 SG2 __; _66 WC2 = _66 HG2 C3 _67 HG2 _68 C2 C2_G2_C3   _69 WC2_G2_C3

[j.crater]

Hey, sorry about late response, haven't been around much.
I didn't setup a venv with Tkinter. But I can tell you got the lines of code count up pretty well!
Do you have a github account for the project?