3 # midi2ly.py -- LilyPond midi import script
5 # This file is part of LilyPond, the GNU music typesetter.
7 # Copyright (C) 1998--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
8 # Jan Nieuwenhuizen <janneke@gnu.org>
10 # LilyPond is free software: you can redistribute it and/or modify
11 # it under the terms of the GNU General Public License as published by
12 # the Free Software Foundation, either version 3 of the License, or
13 # (at your option) any later version.
15 # LilyPond is distributed in the hope that it will be useful,
16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 # GNU General Public License for more details.
20 # You should have received a copy of the GNU General Public License
21 # along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
39 ################################################################
44 scale_steps = [0, 2, 4, 5, 7, 9, 11]
52 start_quant_clocks = 0
54 duration_quant_clocks = 0
55 allowed_tuplet_clocks = []
58 ################################################################
61 program_name = sys.argv[0]
62 program_version = '@TOPLEVEL_VERSION@'
64 authors = ('Jan Nieuwenhuizen <janneke@gnu.org>',
65 'Han-Wen Nienhuys <hanwen@xs4all.nl>')
67 errorport = sys.stderr
70 sys.stdout.write ('%s (GNU LilyPond) %s\n' % (program_name, program_version))
74 ly.encoded_write (sys.stdout, '''
81 ''' % ( _ ('Copyright (c) %s by') % '1998--2011',
83 _ ('Distributed under terms of the GNU General Public License.'),
84 _ ('It comes with NO WARRANTY.')))
87 ly.encoded_write (errorport, s + '\n')
90 progress (_ ("warning: ") + s)
93 progress (_ ("error: ") + s)
94 raise Exception (_ ("Exiting... "))
97 if global_options.debug:
98 progress ("debug: " + s)
100 def system (cmd, ignore_error = 0):
101 return ly.system (cmd, ignore_error=ignore_error)
103 def strip_extension (f, ext):
104 (p, e) = os.path.splitext (f)
111 allowed_durs = (1, 2, 4, 8, 16, 32, 64, 128)
112 def __init__ (self, clocks):
115 self.clocks = duration_quant_clocks
116 (self.dur, self.num, self.den) = self.dur_num_den (clocks)
118 def dur_num_den (self, clocks):
119 for i in range (len (allowed_tuplet_clocks)):
120 if clocks == allowed_tuplet_clocks[i]:
121 return global_options.allowed_tuplets[i]
123 dur = 0; num = 1; den = 1;
124 g = gcd (clocks, clocks_per_1)
126 (dur, num) = (clocks_per_1 / g, clocks / g)
127 if not dur in self.allowed_durs:
128 dur = 4; num = clocks; den = clocks_per_4
129 return (dur, num, den)
135 elif self.num == 3 and self.dur != 1:
136 s = '%d.' % (self.dur / 2)
138 s = '%d*%d' % (self.dur, self.num)
140 s = '%d*%d/%d' % (self.dur, self.num, self.den)
142 global reference_note
143 if reference_note: # debugging
144 reference_note.duration = self
148 def compare (self, other):
149 return self.clocks - other.clocks
158 names = (0, 0, 1, 1, 2, 3, 3, 4, 4, 5, 5, 6)
159 alterations = (0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0)
160 alteration_names = ('eses', 'es', '', 'is' , 'isis')
161 def __init__ (self, clocks, pitch, velocity):
163 self.velocity = velocity
166 self.duration = Duration (clocks)
167 (self.octave, self.notename, self.alteration) = self.o_n_a ()
171 # minor scale: la-la (= + 5) '''
173 n = self.names[(self.pitch) % 12]
174 a = self.alterations[(self.pitch) % 12]
176 key = global_options.key
181 a = - self.alterations[(self.pitch) % 12]
184 # By tradition, all scales now consist of a sequence
185 # of 7 notes each with a distinct name, from amongst
186 # a b c d e f g. But, minor scales have a wide
187 # second interval at the top - the 'leading note' is
188 # sharped. (Why? it just works that way! Anything
189 # else doesn't sound as good and isn't as flexible at
190 # saying things. In medieval times, scales only had 6
191 # notes to avoid this problem - the hexachords.)
193 # So, the d minor scale is d e f g a b-flat c-sharp d
194 # - using d-flat for the leading note would skip the
195 # name c and duplicate the name d. Why isn't c-sharp
196 # put in the key signature? Tradition. (It's also
197 # supposedly based on the Pythagorean theory of the
198 # cycle of fifths, but that really only applies to
199 # major scales...) Anyway, g minor is g a b-flat c d
200 # e-flat f-sharp g, and all the other flat minor keys
201 # end up with a natural leading note. And there you
204 # John Sankey <bf250@freenet.carleton.ca>
206 # Let's also do a-minor: a b c d e f gis a
210 o = self.pitch / 12 - 4
214 if (key.sharps == 0 and key.flats == 0
215 and n == 5 and a == -1):
218 elif key.flats == 1 and n == 1 and a == -1:
221 elif key.flats == 2 and n == 4 and a == -1:
224 elif key.sharps == 5 and n == 4 and a == 0:
227 elif key.sharps == 6 and n == 1 and a == 0:
230 elif key.sharps == 7 and n == 5 and a == 0:
234 if key.flats >= 6 and n == 6 and a == 0:
235 n = 0; a = -1; o = o + 1
237 if key.flats >= 7 and n == 2 and a == 0:
241 if key.sharps >= 3 and n == 3 and a == 0:
244 if key.sharps >= 4 and n == 0 and a == 0:
245 n = 6; a = 1; o = o - 1
250 s = chr ((self.notename + 2) % 7 + ord ('a'))
251 return 'Note(%s %s)' % (s, self.duration.dump ())
253 def dump (self, dump_dur=True):
254 global reference_note
255 s = chr ((self.notename + 2) % 7 + ord ('a'))
256 s = s + self.alteration_names[self.alteration + 2]
257 if global_options.absolute_pitches:
260 delta = self.pitch - reference_note.pitch
261 commas = sign (delta) * (abs (delta) / 12)
263 * (self.notename - reference_note.notename) + 7)
265 or ((self.notename == reference_note.notename)
266 and (abs (delta) > 4) and (abs (delta) < 12))):
267 commas = commas + sign (delta)
272 s = s + "," * -commas
275 and self.duration.compare (reference_note.duration))
276 or global_options.explicit_durations):
277 s = s + self.duration.dump ()
279 reference_note = self
286 def __init__ (self, num, den):
291 def bar_clocks (self):
292 return clocks_per_1 * self.num / self.den
295 return 'Time(%d/%d)' % (self.num, self.den)
300 return '\n ' + '\\time %d/%d ' % (self.num, self.den) + '\n '
303 def __init__ (self, seconds_per_1):
305 self.seconds_per_1 = seconds_per_1
308 return 'Tempo(%d)' % self.bpm ()
311 return 4 * 60 / self.seconds_per_1
314 return '\n ' + '\\tempo 4 = %d ' % (self.bpm ()) + '\n '
317 clefs = ('"bass_8"', 'bass', 'violin', '"violin^8"')
318 def __init__ (self, type):
322 return 'Clef(%s)' % self.clefs[self.type]
325 return '\n \\clef %s\n ' % self.clefs[self.type]
328 key_sharps = ('c', 'g', 'd', 'a', 'e', 'b', 'fis')
329 key_flats = ('BUG', 'f', 'bes', 'es', 'as', 'des', 'ges')
331 def __init__ (self, sharps, flats, minor):
338 global_options.key = self
341 if self.sharps and self.flats:
345 k = (ord ('cfbeadg'[self.flats % 7]) - ord ('a') - 2 -2 * self.minor + 7) % 7
347 k = (ord ('cgdaebf'[self.sharps % 7]) - ord ('a') - 2 -2 * self.minor + 7) % 7
350 name = chr ((k + 2) % 7 + ord ('a'))
352 name = chr ((k + 2) % 7 + ord ('a'))
354 # fis cis gis dis ais eis bis
355 sharps = (2, 4, 6, 1, 3, 5, 7)
356 # bes es as des ges ces fes
357 flats = (6, 4, 2, 7, 5, 3, 1)
360 if flats[k] <= self.flats:
363 if sharps[k] <= self.sharps:
367 name = name + Note.alteration_names[a + 2]
375 return '\n\n ' + s + '\n '
383 'SEQUENCE_TRACK_NAME',
389 def __init__ (self, type, text):
395 # urg, we should be sure that we're in a lyrics staff
397 if self.type == midi.LYRIC:
398 s = '"%s"' % self.text
399 d = Duration (self.clocks)
400 if (global_options.explicit_durations
401 or d.compare (reference_note.duration)):
402 s = s + Duration (self.clocks).dump ()
404 elif (self.text.strip ()
405 and self.type == midi.SEQUENCE_TRACK_NAME
406 and not self.text == 'control track'
407 and not self.track.lyrics_p_):
408 text = self.text.replace ('(MIDI)', '').strip ()
410 s = '\n \\set Staff.instrumentName = "%(text)s"\n ' % locals ()
411 elif self.text.strip ():
412 s = '\n % [' + self.text_types[self.type] + '] ' + self.text + '\n '
416 return 'Text(%d=%s)' % (self.type, self.text)
418 def get_voice (channel, music):
419 debug ('channel: ' + str (channel) + '\n')
420 return unthread_notes (music)
423 def __init__ (self, number):
427 def add (self, event):
428 self.events.append (event)
429 def get_voice (self):
431 self.music = self.parse ()
432 return get_voice (self.number, self.music)
439 for e in self.events:
442 if start_quant_clocks:
443 t = quantise_clocks (t, start_quant_clocks)
445 if (e[1][0] == midi.NOTE_OFF
446 or (e[1][0] == midi.NOTE_ON and e[1][2] == 0)):
447 debug ('%d: NOTE OFF: %s' % (t, e[1][1]))
449 debug (' ...treated as OFF')
450 end_note (pitches, notes, t, e[1][1])
452 elif e[1][0] == midi.NOTE_ON:
453 if not pitches.has_key (e[1][1]):
454 debug ('%d: NOTE ON: %s' % (t, e[1][1]))
455 pitches[e[1][1]] = (t, e[1][2])
459 # all include ALL_NOTES_OFF
460 elif (e[1][0] >= midi.ALL_SOUND_OFF
461 and e[1][0] <= midi.POLY_MODE_ON):
463 end_note (pitches, notes, t, i)
465 elif e[1][0] == midi.META_EVENT:
466 if e[1][1] == midi.END_OF_TRACK:
468 end_note (pitches, notes, t, i)
471 elif e[1][1] == midi.SET_TEMPO:
472 (u0, u1, u2) = map (ord, e[1][2])
473 us_per_4 = u2 + 256 * (u1 + 256 * u0)
474 seconds_per_1 = us_per_4 * 4 / 1e6
475 music.append ((t, Tempo (seconds_per_1)))
476 elif e[1][1] == midi.TIME_SIGNATURE:
477 (num, dur, clocks4, count32) = map (ord, e[1][2])
479 music.append ((t, Time (num, den)))
480 elif e[1][1] == midi.KEY_SIGNATURE:
481 (alterations, minor) = map (ord, e[1][2])
484 if alterations < 127:
487 flats = 256 - alterations
489 k = Key (sharps, flats, minor)
490 if not t and global_options.key:
491 # At t == 0, a set --key overrides us
492 k = global_options.key
493 music.append ((t, k))
495 # ugh, must set key while parsing
496 # because Note init uses key
497 # Better do Note.calc () at dump time?
498 global_options.key = k
500 elif (e[1][1] == midi.LYRIC
501 or (global_options.text_lyrics
502 and e[1][1] == midi.TEXT_EVENT)):
503 self.lyrics_p_ = True
505 last_lyric.clocks = t - last_time
506 music.append ((last_time, last_lyric))
508 last_lyric = Text (midi.LYRIC, e[1][2])
510 elif (e[1][1] >= midi.SEQUENCE_NUMBER
511 and e[1][1] <= midi.CUE_POINT):
512 text = Text (e[1][1], e[1][2])
514 music.append ((t, text))
515 if (text.type == midi.SEQUENCE_TRACK_NAME):
516 self.name = text.text
518 if global_options.verbose:
519 sys.stderr.write ("SKIP: %s\n" % `e`)
521 if global_options.verbose:
522 sys.stderr.write ("SKIP: %s\n" % `e`)
525 # last_lyric.clocks = t - last_time
527 last_lyric.clocks = clocks_per_4
528 music.append ((last_time, last_lyric))
533 if i < len (music) and notes[0][0] >= music[i][0]:
536 music.insert (i, notes[0])
540 class Track (Channel):
542 Channel.__init__ (self, None)
545 self.lyrics_p_ = False
546 def _add (self, event):
547 self.events.append (event)
548 def add (self, event, channel=None):
552 self.channels[channel] = self.channels.get (channel, Channel (channel))
553 self.channels[channel].add (event)
554 def get_voices (self):
555 return ([self.get_voice ()]
556 + [self.channels[k].get_voice ()
557 for k in sorted (self.channels.keys ())])
559 def create_track (events):
563 if data[0] > 0x7f and data[0] < 0xf0:
564 channel = data[0] & 0x0f
565 e = (e[0], tuple ([data[0] & 0xf0] + data[1:]))
566 track.add (e, channel)
571 def quantise_clocks (clocks, quant):
572 q = int (clocks / quant) * quant
574 for tquant in allowed_tuplet_clocks:
575 if int (clocks / tquant) * tquant == clocks:
577 if 2 * (clocks - q) > quant:
581 def end_note (pitches, notes, t, e):
583 (lt, vel) = pitches[e]
593 if duration_quant_clocks:
594 d = quantise_clocks (d, duration_quant_clocks)
596 d = duration_quant_clocks
599 (lt, Note (d, e, vel)))
604 def unthread_notes (channel):
613 if (e[1].__class__ == Note
614 and ((t == start_busy_t
615 and e[1].clocks + t == end_busy_t)
616 or t >= end_busy_t)):
619 end_busy_t = t + e[1].clocks
620 elif (e[1].__class__ == Time
621 or e[1].__class__ == Key
622 or e[1].__class__ == Text
623 or e[1].__class__ == Tempo):
627 threads.append (thread)
642 def dump_skip (skip, clocks):
643 return skip + Duration (clocks).dump () + ' '
652 if i.__class__ == Note:
657 s = s + dump (notes[0])
658 elif len (notes) > 1:
659 global reference_note
661 s = s + notes[0].dump (dump_dur=False)
664 s = s + i.dump (dump_dur=False)
667 s = s + notes[0].duration.dump () + ' '
671 def dump_bar_line (last_bar_t, t, bar_count):
673 bar_t = time.bar_clocks ()
674 if t - last_bar_t >= bar_t:
675 bar_count = bar_count + (t - last_bar_t) / bar_t
677 if t - last_bar_t == bar_t:
678 s = '\n | %% %(bar_count)d\n ' % locals ()
681 # urg, this will barf at meter changes
682 last_bar_t = last_bar_t + (t - last_bar_t) / bar_t * bar_t
684 return (s, last_bar_t, bar_count)
687 def dump_voice (thread, skip):
688 global reference_note, time
689 ref = Note (0, 4*12, 0)
690 if not reference_note:
693 ref.duration = reference_note.duration
700 if last_e and last_e[0] == e[0]:
704 chs.append ((last_e[0], ch))
711 chs.append ((last_e[0], ch))
721 i = lines[-1].rfind ('\n') + 1
722 if len (lines[-1][i:]) > LINE_BELL:
727 if bar_max and t > time.bar_clocks () * bar_max:
728 d = time.bar_clocks () * bar_max - last_t
729 lines[-1] = lines[-1] + dump_skip (skip, d)
731 errorport.write ('BUG: time skew')
733 (s, last_bar_t, bar_count) = dump_bar_line (last_bar_t,
736 if bar_max and bar_count > bar_max:
739 lines[-1] = lines[-1] + s
740 lines[-1] = lines[-1] + dump_chord (ch[1])
744 if i.clocks > clocks:
749 (s, last_bar_t, bar_count) = dump_bar_line (last_bar_t,
751 lines[-1] = lines[-1] + s
753 return '\n '.join (lines) + '\n'
755 def number2ascii (i):
760 s = '%c' % (m + ord ('A')) + s
764 def get_track_name (i):
765 return 'track' + number2ascii (i)
767 def get_channel_name (i):
768 return 'channel' + number2ascii (i)
770 def get_voice_name (i, zero_too_p=False):
772 return 'voice' + number2ascii (i)
775 def lst_append (lst, x):
779 def get_voice_layout (average_pitch):
781 for i in range (len (average_pitch)):
782 d[average_pitch[i]] = lst_append (d.get (average_pitch[i], []), i)
783 s = list (reversed (sorted (average_pitch)))
784 non_empty = len (filter (lambda x: x, s))
785 names = ['One', 'Two']
787 names = ['One', 'Three', 'Four', 'Two']
788 layout = map (lambda x: '', range (len (average_pitch)))
789 for i, n in zip (s, names):
798 def dump_track (track, n):
800 track_name = get_track_name (n)
802 average_pitch = track_average_pitch (track)
803 voices = len (filter (lambda x: x, average_pitch[1:]))
804 clef = get_best_clef (average_pitch[0])
808 for channel in track:
810 channel_name = get_channel_name (c)
812 for voice in channel:
813 voice_name = get_voice_name (v)
814 voice_id = track_name + channel_name + voice_name
815 item = voice_first_item (voice)
817 if item and item.__class__ == Note:
819 if global_options.skip:
821 s += '%(voice_id)s = ' % locals ()
822 if not global_options.absolute_pitches:
824 elif item and item.__class__ == Text:
826 s += '%(voice_id)s = \\lyricmode ' % locals ()
829 s += '%(voice_id)s = ' % locals ()
831 if not n and not vv and global_options.key:
832 s += global_options.key.dump ()
833 if average_pitch[vv+1] and voices > 1:
834 s += ' \\voice' + get_voice_layout (average_pitch[1:])[vv] + '\n'
835 s += ' ' + dump_voice (voice, skip)
840 s += '%(track_name)s = <<\n' % locals ()
843 s += clef.dump () + '\n'
847 for channel in track:
849 channel_name = get_channel_name (c)
851 for voice in channel:
852 voice_context_name = get_voice_name (vv, zero_too_p=True)
853 voice_name = get_voice_name (v)
856 voice_id = track_name + channel_name + voice_name
857 item = voice_first_item (voice)
859 if item and item.__class__ == Text:
861 s += ' \\context %(context)s = %(voice_context_name)s \\%(voice_id)s\n' % locals ()
865 def voice_first_item (voice):
867 if (event[1].__class__ == Note
868 or (event[1].__class__ == Text
869 and event[1].type == midi.LYRIC)):
873 def channel_first_item (channel):
874 for voice in channel:
875 first = voice_first_item (voice)
880 def track_first_item (track):
881 for channel in track:
882 first = channel_first_item (channel)
887 def track_average_pitch (track):
891 for channel in track:
892 for voice in channel:
896 if event[1].__class__ == Note:
899 p[v] += event[1].pitch
908 def get_best_clef (average_pitch):
910 if average_pitch <= 3*12:
912 elif average_pitch <= 5*12:
914 elif average_pitch >= 7*12:
919 def __init__ (self, track):
920 self.voices = track.get_voices ()
922 return dump_track (self.voices, i)
924 def convert_midi (in_file, out_file):
925 global clocks_per_1, clocks_per_4, key
926 global start_quant_clocks
927 global duration_quant_clocks
928 global allowed_tuplet_clocks
931 str = open (in_file, 'rb').read ()
932 clocks_max = bar_max * clocks_per_1 * 2
933 midi_dump = midi.parse (str, clocks_max)
935 clocks_per_1 = midi_dump[0][1]
936 clocks_per_4 = clocks_per_1 / 4
939 if global_options.start_quant:
940 start_quant_clocks = clocks_per_1 / global_options.start_quant
942 if global_options.duration_quant:
943 duration_quant_clocks = clocks_per_1 / global_options.duration_quant
945 allowed_tuplet_clocks = []
946 for (dur, num, den) in global_options.allowed_tuplets:
947 allowed_tuplet_clocks.append (clocks_per_1 / dur * num / den)
949 if global_options.verbose:
950 print 'allowed tuplet clocks:', allowed_tuplet_clocks
952 tracks = [create_track (t) for t in midi_dump[1]]
953 # urg, parse all global track events, such as Key first
954 # this fixes key in different voice/staff problem
960 voices = t.get_voices ()
961 if ((t.name and prev and prev.name)
962 and t.name.split (':')[0] == prev.name.split (':')[0]):
963 # staves[-1].voices += voices
964 # all global track events first
965 staves[-1].voices = ([staves[-1].voices[0]]
967 + staves[-1].voices[1:]
970 staves.append (Staff (t))
973 tag = '%% Lily was here -- automatically converted by %s from %s' % ( program_name, in_file)
985 \remove "Note_heads_engraver"
986 \consists "Completion_heads_engraver"
987 \remove "Rest_engraver"
988 \consists "Completion_rest_engraver"
993 for i in global_options.include_header:
994 s += '\n%% included from %(i)s\n' % locals ()
995 s += open (i).read ()
1000 for i, t in enumerate (staves):
1003 s += '\n\\score {\n <<\n'
1006 for i, staff in enumerate (staves):
1007 track_name = get_track_name (i)
1008 item = track_first_item (staff.voices)
1009 staff_name = track_name
1011 if not i and not item and len (staves) > 1:
1013 staff_name = get_track_name (1)
1015 elif (item and item.__class__ == Note):
1017 elif item and item.__class__ == Text:
1020 s += ' \\context %(context)s=%(staff_name)s \\%(track_name)s\n' % locals ()
1028 progress (_ ("%s output to `%s'...") % ('LY', out_file))
1033 handle = open (out_file, 'w')
1039 def get_option_parser ():
1040 p = ly.get_option_parser (usage=_ ("%s [OPTION]... FILE") % 'midi2ly',
1041 description=_ ("Convert %s to LilyPond input.\n") % 'MIDI',
1042 add_help_option=False)
1044 p.add_option ('-a', '--absolute-pitches',
1045 action='store_true',
1046 help=_ ('print absolute pitches'))
1047 p.add_option ('-d', '--duration-quant',
1049 help=_ ('quantise note durations on DUR'))
1050 p.add_option ('-D', '--debug',
1051 action='store_true',
1052 help=_ ('debug printing'))
1053 p.add_option ('-e', '--explicit-durations',
1054 action='store_true',
1055 help=_ ('print explicit durations'))
1056 p.add_option('-h', '--help',
1058 help=_ ('show this help and exit'))
1059 p.add_option('-i', '--include-header',
1060 help=_ ('prepend FILE to output'),
1064 p.add_option('-k', '--key', help=_ ('set key: ALT=+sharps|-flats; MINOR=1'),
1065 metavar=_ ('ALT[:MINOR]'),
1067 p.add_option ('-o', '--output', help=_ ('write output to FILE'),
1070 p.add_option ('-p', '--preview', help=_ ('preview of first 4 bars'),
1071 action='store_true')
1072 p.add_option ('-s', '--start-quant',help= _ ('quantise note starts on DUR'),
1074 p.add_option ('-S', '--skip',
1075 action = "store_true",
1076 help =_ ("use s instead of r for rests"))
1077 p.add_option ('-t', '--allow-tuplet',
1078 metavar=_ ('DUR*NUM/DEN'),
1080 dest='allowed_tuplets',
1081 help=_ ('allow tuplet durations DUR*NUM/DEN'),
1083 p.add_option ('-V', '--verbose', help=_ ('be verbose'),
1086 p.version = 'midi2ly (LilyPond) @TOPLEVEL_VERSION@'
1087 p.add_option ('--version',
1089 help=_ ('show version number and exit'))
1090 p.add_option ('-w', '--warranty', help=_ ('show warranty and copyright'),
1091 action='store_true',
1093 p.add_option ('-x', '--text-lyrics', help=_ ('treat every text as a lyric'),
1094 action='store_true')
1096 p.add_option_group (ly.display_encode (_ ('Examples')),
1098 $ midi2ly --key=-2:1 --duration-quant=32 --allow-tuplet=4*2/3 --allow-tuplet=2*4/3 foo.midi
1100 p.add_option_group ('',
1102 _ ('Report bugs via %s')
1103 % 'http://post.gmane.org/post.php'
1104 '?group=gmane.comp.gnu.lilypond.bugs') + '\n')
1110 opt_parser = get_option_parser ()
1111 (options, args) = opt_parser.parse_args ()
1113 if options.warranty:
1117 if not args or args[0] == '-':
1118 opt_parser.print_help ()
1119 ly.stderr_write ('\n%s: %s %s\n' % (program_name, _ ('error: '),
1120 _ ('no files specified on command line.')))
1123 if options.duration_quant:
1124 options.duration_quant = int (options.duration_quant)
1127 (alterations, minor) = map (int, (options.key + ':0').split (':'))[0:2]
1130 if alterations >= 0:
1131 sharps = alterations
1133 flats = - alterations
1134 options.key = Key (sharps, flats, minor)
1136 if options.start_quant:
1137 options.start_quant = int (options.start_quant)
1143 options.allowed_tuplets = [map (int, a.replace ('/','*').split ('*'))
1144 for a in options.allowed_tuplets]
1147 sys.stderr.write ('Allowed tuplets: %s\n' % `options.allowed_tuplets`)
1149 global global_options
1150 global_options = options
1155 files = do_options ()
1157 exts = ['.midi', '.mid', '.MID']
1161 g = strip_extension (g, e)
1162 if not os.path.exists (f):
1165 if os.path.exists (n):
1169 if not global_options.output:
1171 outbase = os.path.basename (g)
1172 o = outbase + '-midi.ly'
1173 elif (global_options.output[-1] == os.sep
1174 or os.path.isdir (global_options.output)):
1175 outdir = global_options.output
1176 outbase = os.path.basename (g)
1177 o = os.path.join (outdir, outbase + '-midi.ly')
1179 o = global_options.output
1180 (outdir, outbase) = os.path.split (o)
1182 if outdir and outdir != '.' and not os.path.exists (outdir):
1183 os.mkdir (outdir, 0777)
1187 if __name__ == '__main__':