8 from gettext import gettext as _
12 for d in ['@lilypond_datadir@',
14 sys.path.insert (0, os.path.join (d, 'python'))
16 # dynamic relocation, for GUB binaries.
17 bindir = os.path.abspath (os.path.split (sys.argv[0])[0])
18 for p in ['share', 'lib']:
19 datadir = os.path.abspath (bindir + '/../%s/lilypond/current/python/' % p)
20 sys.path.insert (0, datadir)
30 from rational import Rational
34 sys.stderr.write (str + '\n')
38 def musicxml_duration_to_lily (mxl_note):
39 d = musicexp.Duration ()
40 if mxl_note.get_maybe_exist_typed_child (musicxml.Type):
41 d.duration_log = mxl_note.get_duration_log ()
45 d.dots = len (mxl_note.get_typed_children (musicxml.Dot))
46 d.factor = mxl_note._duration / d.get_length ()
50 def group_tuplets (music_list, events):
53 """Collect Musics from
54 MUSIC_LIST demarcated by EVENTS_LIST in TimeScaledMusic objects.
61 for (ev_chord, tuplet_elt, fraction) in events:
62 while (j < len (music_list)):
63 if music_list[j]== ev_chord:
66 if tuplet_elt.type == 'start':
67 indices.append ((j, None, fraction))
68 elif tuplet_elt.type == 'stop':
69 indices[-1] = (indices[-1][0], j, indices[-1][2])
73 for (i1, i2, frac) in indices:
77 new_list.extend (music_list[last:i1])
78 seq = musicexp.SequentialMusic ()
80 seq.elements = music_list[i1:last]
82 tsm = musicexp.TimeScaledMusic ()
85 tsm.numerator = frac[0]
86 tsm.denominator = frac[1]
90 new_list.extend (music_list[last:])
94 def musicxml_clef_to_lily (attributes):
95 change = musicexp.ClefChange ()
96 change.type = attributes.get_clef_sign ()
99 def musicxml_time_to_lily (attributes):
100 (beats, type) = attributes.get_time_signature ()
102 change = musicexp.TimeSignatureChange()
103 change.fraction = (beats, type)
107 def musicxml_key_to_lily (attributes):
108 start_pitch = musicexp.Pitch ()
109 (fifths, mode) = attributes.get_key_signature ()
116 start_pitch.alteration = a
118 print 'unknown mode', mode
120 fifth = musicexp.Pitch()
127 for x in range (fifths):
128 start_pitch = start_pitch.transposed (fifth)
130 start_pitch.octave = 0
132 change = musicexp.KeySignatureChange()
134 change.tonic = start_pitch
137 def musicxml_attributes_to_lily (attrs):
140 'clef': musicxml_clef_to_lily,
141 'time': musicxml_time_to_lily,
142 'key': musicxml_key_to_lily
144 for (k, func) in attr_dispatch.items ():
145 childs = attrs.get_named_children (k)
147 ## ugh: you get clefs spread over staves for piano
149 elts.append (func (attrs))
153 spanner_event_dict = {
154 'slur' : musicexp.SlurEvent,
155 'beam' : musicexp.BeamEvent,
157 spanner_type_dict = {
164 def musicxml_spanner_to_lily_event (mxl_event):
167 name = mxl_event.get_name()
169 func = spanner_event_dict[name]
172 print 'unknown span event ', mxl_event
175 key = mxl_event.get_type ()
176 ev.span_direction = spanner_type_dict[key]
178 print 'unknown span type', key, 'for', name
182 instrument_drumtype_dict = {
183 'Acoustic Snare Drum': 'acousticsnare',
184 'Side Stick': 'sidestick',
185 'Open Triangle': 'opentriangle',
186 'Mute Triangle': 'mutetriangle',
187 'Tambourine': 'tambourine',
191 def musicxml_note_to_lily_main_event (n):
195 mxl_pitch = n.get_maybe_exist_typed_child (musicxml.Pitch)
198 pitch = musicxml_pitch_to_lily (mxl_pitch)
199 event = musicexp.NoteEvent()
202 acc = n.get_maybe_exist_named_child ('accidental')
204 # let's not force accs everywhere.
205 event.cautionary = acc.editorial
207 elif n.get_maybe_exist_typed_child (musicxml.Rest):
208 event = musicexp.RestEvent()
209 elif n.instrument_name:
210 event = musicexp.NoteEvent ()
212 event.drum_type = instrument_drumtype_dict[n.instrument_name]
214 n.message ("drum %s type unknow, please add to instrument_drumtype_dict" % n.instrument_name)
215 event.drum_type = 'acousticsnare'
218 n.message ("cannot find suitable event")
220 event.duration = musicxml_duration_to_lily (n)
226 def __init__ (self, here, dest):
230 class LilyPondVoiceBuilder:
233 self.end_moment = Rational (0)
234 self.begin_moment = Rational (0)
235 self.pending_multibar = Rational (0)
237 def _insert_multibar (self):
238 r = musicexp.MultiMeasureRest ()
239 r.duration = musicexp.Duration()
240 r.duration.duration_log = 0
241 r.duration.factor = self.pending_multibar
242 self.elements.append (r)
243 self.begin_moment = self.end_moment
244 self.end_moment = self.begin_moment + self.pending_multibar
245 self.pending_multibar = Rational (0)
247 def add_multibar_rest (self, duration):
248 self.pending_multibar += duration
251 def add_music (self, music, duration):
252 assert isinstance (music, musicexp.Music)
253 if self.pending_multibar > Rational (0):
254 self._insert_multibar ()
256 self.elements.append (music)
257 self.begin_moment = self.end_moment
258 self.end_moment = self.begin_moment + duration
260 def add_bar_check (self, number):
261 b = musicexp.BarCheck ()
262 b.bar_number = number
263 self.add_music (b, Rational (0))
265 def jumpto (self, moment):
266 current_end = self.end_moment + self.pending_multibar
267 diff = moment - current_end
269 if diff < Rational (0):
270 print 'Negative skip', diff
273 if diff > Rational (0):
274 skip = musicexp.SkipEvent()
275 skip.duration.duration_log = 0
276 skip.duration.factor = diff
278 evc = musicexp.EventChord ()
279 evc.elements.append (skip)
280 self.add_music (evc, diff)
282 def last_event_chord (self, starting_at):
286 and isinstance (self.elements[-1], musicexp.EventChord)
287 and self.begin_moment == starting_at):
288 value = self.elements[-1]
290 self.jumpto (starting_at)
295 def correct_negative_skip (self, goto):
296 self.end_moment = goto
297 self.begin_moment = goto
298 evc = musicexp.EventChord ()
299 self.elements.append (evc)
301 def musicxml_voice_to_lily_voice (voice):
305 voice_builder = LilyPondVoiceBuilder()
307 for n in voice._elements:
308 if n.get_name () == 'forward':
311 if not n.get_maybe_exist_named_child ('chord'):
313 voice_builder.jumpto (n._when)
314 except NegativeSkip, neg:
315 voice_builder.correct_negative_skip (n._when)
316 n.message ("Negative skip? from %s to %s, diff %s" % (neg.here, neg.dest, neg.dest - neg.here))
318 if isinstance (n, musicxml.Attributes):
319 if n.is_first () and n._measure_position == Rational (0):
321 number = int (n.get_parent ().number)
325 voice_builder.add_bar_check (number)
326 for a in musicxml_attributes_to_lily (n):
327 voice_builder.add_music (a, Rational (0))
330 if not n.__class__.__name__ == 'Note':
331 print 'not a Note or Attributes?', n
334 rest = n.get_maybe_exist_typed_child (musicxml.Rest)
336 and rest.is_whole_measure ()):
338 voice_builder.add_multibar_rest (n._duration)
341 if n.is_first () and n._measure_position == Rational (0):
343 num = int (n.get_parent ().number)
346 voice_builder.add_bar_check (num)
348 main_event = musicxml_note_to_lily_main_event (n)
351 if main_event.drum_type:
352 modes_found['drummode'] = True
353 except AttributeError:
357 ev_chord = voice_builder.last_event_chord (n._when)
359 ev_chord = musicexp.EventChord()
360 voice_builder.add_music (ev_chord, n._duration)
362 ev_chord.append (main_event)
364 notations = n.get_maybe_exist_typed_child (musicxml.Notations)
368 if notations.get_tuplet():
369 tuplet_event = notations.get_tuplet()
370 mod = n.get_maybe_exist_typed_child (musicxml.Time_modification)
373 frac = mod.get_fraction ()
375 tuplet_events.append ((ev_chord, tuplet_event, frac))
377 slurs = [s for s in notations.get_named_children ('slur')
378 if s.get_type () in ('start','stop')]
381 print 'more than 1 slur?'
383 lily_ev = musicxml_spanner_to_lily_event (slurs[0])
384 ev_chord.append (lily_ev)
386 mxl_tie = notations.get_tie ()
387 if mxl_tie and mxl_tie.type == 'start':
388 ev_chord.append (musicexp.TieEvent ())
390 mxl_beams = [b for b in n.get_named_children ('beam')
391 if (b.get_type () in ('begin', 'end')
392 and b.is_primary ())]
394 beam_ev = musicxml_spanner_to_lily_event (mxl_beams[0])
396 ev_chord.append (beam_ev)
399 mod = n.get_maybe_exist_typed_child (musicxml.Time_modification)
402 frac = mod.get_fraction ()
404 tuplet_events.append ((ev_chord, tuplet_event, frac))
406 ## force trailing mm rests to be written out.
407 voice_builder.add_music (musicexp.EventChord (), Rational (0))
409 ly_voice = group_tuplets (voice_builder.elements, tuplet_events)
411 seq_music = musicexp.SequentialMusic()
413 if 'drummode' in modes_found.keys ():
414 ## \key <pitch> barfs in drummode.
415 ly_voice = [e for e in ly_voice
416 if not isinstance(e, musicexp.KeySignatureChange)]
418 seq_music.elements = ly_voice
422 if len (modes_found) > 1:
423 print 'Too many modes found', modes_found.keys ()
425 return_value = seq_music
426 for mode in modes_found.keys ():
427 v = musicexp.ModeChangingMusicWrapper()
428 v.element = return_value
435 def musicxml_id_to_lily (id):
436 digits = ['one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight',
440 d = digits.index (dig) + 1
441 dig = dig[0].upper() + dig[1:]
442 id = re.sub ('%d' % d, dig, id)
444 id = re.sub ('[^a-zA-Z]', 'X', id)
448 def musicxml_pitch_to_lily (mxl_pitch):
450 p.alteration = mxl_pitch.get_alteration ()
451 p.step = (ord (mxl_pitch.get_step ()) - ord ('A') + 7 - 2) % 7
452 p.octave = mxl_pitch.get_octave () - 4
455 def voices_in_part (part):
456 """Return a Name -> Voice dictionary for PART"""
458 part.extract_voices ()
459 voice_dict = part.get_voices ()
463 def voices_in_part_in_parts (parts):
464 """return a Part -> Name -> Voice dictionary"""
465 return dict([(p, voices_in_part (p)) for p in parts])
468 def get_all_voices (parts):
469 all_voices = voices_in_part_in_parts (parts)
472 for p, name_voice in all_voices.items ():
475 for n, v in name_voice.items ():
476 progress ("Converting to LilyPond expressions...")
477 part_ly_voices[n] = (musicxml_voice_to_lily_voice (v), v)
479 all_ly_voices[p] = part_ly_voices
484 def option_parser ():
485 p = ly.get_option_parser(usage=_ ("musicxml2ly FILE.xml"),
486 version=('''%prog (LilyPond) @TOPLEVEL_VERSION@\n\n'''
488 _ ("""This program is free software. It is covered by the GNU General Public
489 License and you are welcome to change it and/or distribute copies of it
490 under certain conditions. Invoke as `%s --warranty' for more
491 information.""") % 'lilypond'
493 Copyright (c) 2005--2006 by
494 Han-Wen Nienhuys <hanwen@xs4all.nl> and
495 Jan Nieuwenhuizen <janneke@gnu.org>
497 description=_ ("Convert %s to LilyPond input.") % 'MusicXML' + "\n")
498 p.add_option ('-v', '--verbose',
501 help=_ ("be verbose"))
503 p.add_option ('', '--lxml',
507 help=_ ("Use lxml.etree; uses less memory and cpu time."))
509 p.add_option ('-o', '--output',
515 help=_ ("set output filename to FILE"))
516 p.add_option_group ('bugs',
517 description=(_ ("Report bugs via")
518 + ''' http://post.gmane.org/post.php'''
519 '''?group=gmane.comp.gnu.lilypond.bugs\n'''))
522 def music_xml_voice_name_to_lily_name (part, name):
523 str = "Part%sVoice%s" % (part.id, name)
524 return musicxml_id_to_lily (str)
526 def print_voice_definitions (printer, voices):
527 for (part, nv_dict) in voices.items():
529 for (name, (voice, mxlvoice)) in nv_dict.items ():
530 k = music_xml_voice_name_to_lily_name (part, name)
531 printer.dump ('%s = ' % k)
532 voice.print_ly (printer)
537 return dict ([(elt,1) for elt in l]).keys ()
539 def print_score_setup (printer, part_list, voices):
540 part_dict = dict ([(p.id, p) for p in voices.keys ()])
544 for part_definition in part_list:
545 part_name = part_definition.id
547 part = part_dict[part_name]
549 print 'unknown part in part-list:', part_name
552 nv_dict = voices[part]
553 staves = reduce (lambda x,y: x+ y,
554 [mxlvoice._staves.keys ()
555 for (v, mxlvoice) in nv_dict.values ()],
559 staves = uniq_list (staves)
561 printer ('\\context PianoStaff << ')
565 staff_voices = [music_xml_voice_name_to_lily_name (part, voice_name)
566 for (voice_name, (v, mxlvoice)) in nv_dict.items ()
567 if mxlvoice._start_staff == s]
569 printer ('\\context Staff = "%s" << ' % s)
571 for v in staff_voices:
572 printer ('\\context Voice = "%s" \\%s' % (v,v))
581 printer ('\\new Staff <<')
583 for (n,v) in nv_dict.items ():
585 n = music_xml_voice_name_to_lily_name (part, n)
586 printer ('\\context Voice = "%s" \\%s' % (n,n))
593 def print_ly_preamble (printer, filename):
594 printer.dump_version ()
595 printer.print_verbatim ('%% converted from %s\n' % filename)
597 def read_musicxml (filename, use_lxml):
601 tree = lxml.etree.parse (filename)
602 mxl_tree = musicxml.lxml_demarshal_node (tree.getroot ())
605 from xml.dom import minidom, Node
607 doc = minidom.parse(filename)
608 node = doc.documentElement
609 return musicxml.minidom_demarshal_node (node)
614 def convert (filename, options):
615 progress ("Reading MusicXML from %s ..." % filename)
617 tree = read_musicxml (filename, options.use_lxml)
620 id_instrument_map = {}
621 if tree.get_maybe_exist_typed_child (musicxml.Part_list):
622 mxl_pl = tree.get_maybe_exist_typed_child (musicxml.Part_list)
623 part_list = mxl_pl.get_named_children ("score-part")
625 parts = tree.get_typed_children (musicxml.Part)
626 voices = get_all_voices (parts)
628 if not options.output_name:
629 options.output_name = os.path.basename (filename)
630 options.output_name = os.path.splitext (options.output_name)[0]
633 defs_ly_name = options.output_name + '-defs.ly'
634 driver_ly_name = options.output_name + '.ly'
636 printer = musicexp.Output_printer()
637 progress ("Output to `%s'" % defs_ly_name)
638 printer.set_file (open (defs_ly_name, 'w'))
640 print_ly_preamble (printer, filename)
641 print_voice_definitions (printer, voices)
646 progress ("Output to `%s'" % driver_ly_name)
647 printer = musicexp.Output_printer()
648 printer.set_file (open (driver_ly_name, 'w'))
649 print_ly_preamble (printer, filename)
650 printer.dump (r'\include "%s"' % defs_ly_name)
651 print_score_setup (printer, part_list, voices)
658 opt_parser = option_parser()
660 (options, args) = opt_parser.parse_args ()
662 opt_parser.print_usage()
665 voices = convert (args[0], options)
667 if __name__ == '__main__':