8 from gettext import gettext as _
19 from rational import Rational
23 sys.stderr.write (str + '\n')
27 def musicxml_duration_to_lily (mxl_note):
28 d = musicexp.Duration ()
29 if mxl_note.get_maybe_exist_typed_child (musicxml.Type):
30 d.duration_log = mxl_note.get_duration_log ()
34 d.dots = len (mxl_note.get_typed_children (musicxml.Dot))
35 d.factor = mxl_note._duration / d.get_length ()
39 def group_tuplets (music_list, events):
42 """Collect Musics from
43 MUSIC_LIST demarcated by EVENTS_LIST in TimeScaledMusic objects.
50 for (ev_chord, tuplet_elt, fraction) in events:
51 while (j < len (music_list)):
52 if music_list[j]== ev_chord:
55 if tuplet_elt.type == 'start':
56 indices.append ((j, None, fraction))
57 elif tuplet_elt.type == 'stop':
58 indices[-1] = (indices[-1][0], j, indices[-1][2])
62 for (i1, i2, frac) in indices:
66 new_list.extend (music_list[last:i1])
67 seq = musicexp.SequentialMusic ()
69 seq.elements = music_list[i1:last]
71 tsm = musicexp.TimeScaledMusic ()
74 tsm.numerator = frac[0]
75 tsm.denominator = frac[1]
79 new_list.extend (music_list[last:])
83 def musicxml_clef_to_lily (attributes):
84 change = musicexp.ClefChange ()
85 change.type = attributes.get_clef_sign ()
88 def musicxml_time_to_lily (attributes):
89 (beats, type) = attributes.get_time_signature ()
91 change = musicexp.TimeSignatureChange()
92 change.fraction = (beats, type)
96 def musicxml_key_to_lily (attributes):
97 start_pitch = musicexp.Pitch ()
98 (fifths, mode) = attributes.get_key_signature ()
105 start_pitch.alteration = a
107 print 'unknown mode', mode
109 fifth = musicexp.Pitch()
116 for x in range (fifths):
117 start_pitch = start_pitch.transposed (fifth)
119 start_pitch.octave = 0
121 change = musicexp.KeySignatureChange()
123 change.tonic = start_pitch
126 def musicxml_attributes_to_lily (attrs):
129 'clef': musicxml_clef_to_lily,
130 'time': musicxml_time_to_lily,
131 'key': musicxml_key_to_lily
133 for (k, func) in attr_dispatch.items ():
134 children = attrs.get_named_children (k)
136 ## ugh: you get clefs spread over staves for piano
138 elts.append (func (attrs))
142 spanner_event_dict = {
143 'slur' : musicexp.SlurEvent,
144 'beam' : musicexp.BeamEvent,
146 spanner_type_dict = {
153 def musicxml_spanner_to_lily_event (mxl_event):
156 name = mxl_event.get_name()
158 func = spanner_event_dict[name]
161 print 'unknown span event ', mxl_event
164 key = mxl_event.get_type ()
165 ev.span_direction = spanner_type_dict[key]
167 print 'unknown span type', key, 'for', name
171 def musicxml_direction_to_indicator (direction):
172 val = { "above": 1, "upright": 1, "below": -1, "downright": -1 }.get (direction)
178 def musicxml_fermata_to_lily_event (mxl_event):
179 ev = musicexp.ArticulationEvent ()
181 if hasattr (mxl_event, 'type'):
182 dir = musicxml_direction_to_indicator (mxl_event.type)
184 ev.force_direction = dir
187 def musicxml_tremolo_to_lily_event(mxl_event):
188 if mxl_event.get_name () != "tremolo":
190 ev = musicexp.TremoloEvent ()
191 ev.bars = mxl_event.get_text ()
194 # TODO: Some translations are missing!
195 articulations_dict = {
197 "trill-mark": "trill",
199 #"delayed-turn": "?",
200 "inverted-turn": "reverseturn",
203 "mordent": "mordent",
204 #"inverted-mordent": "?",
208 "down-bow": "downbow",
211 #"thumb-position": "",
214 #"double-tongue": "",
215 #"triple-tongue": "",
217 #"snap-pizzicato": "",
229 "strong-accent": "marcato",
230 "staccato": "staccato",
232 #"detached-legato": "",
233 "staccatissimo": "staccatissimo",
239 "breath-mark": "breathe",
240 #"caesura": "caesura",
245 def musicxml_articulation_to_lily_event(mxl_event):
246 ev = musicexp.ArticulationEvent ()
247 tp = articulations_dict.get (mxl_event.get_name ())
253 # Some articulations use the type attribute, other the placement...
255 if hasattr (mxl_event, 'type'):
256 dir = musicxml_direction_to_indicator (mxl_event.type)
257 if hasattr (mxl_event, 'placement'):
258 dir = musicxml_direction_to_indicator (mxl_event.placement)
260 ev.force_direction = dir
264 instrument_drumtype_dict = {
265 'Acoustic Snare Drum': 'acousticsnare',
266 'Side Stick': 'sidestick',
267 'Open Triangle': 'opentriangle',
268 'Mute Triangle': 'mutetriangle',
269 'Tambourine': 'tambourine',
273 def musicxml_note_to_lily_main_event (n):
277 mxl_pitch = n.get_maybe_exist_typed_child (musicxml.Pitch)
280 pitch = musicxml_pitch_to_lily (mxl_pitch)
281 event = musicexp.NoteEvent()
284 acc = n.get_maybe_exist_named_child ('accidental')
286 # let's not force accs everywhere.
287 event.cautionary = acc.editorial
289 elif n.get_maybe_exist_typed_child (musicxml.Rest):
290 event = musicexp.RestEvent()
291 elif n.instrument_name:
292 event = musicexp.NoteEvent ()
294 event.drum_type = instrument_drumtype_dict[n.instrument_name]
296 n.message ("drum %s type unknow, please add to instrument_drumtype_dict" % n.instrument_name)
297 event.drum_type = 'acousticsnare'
300 n.message ("cannot find suitable event")
302 event.duration = musicxml_duration_to_lily (n)
308 def __init__ (self, here, dest):
312 class LilyPondVoiceBuilder:
315 self.end_moment = Rational (0)
316 self.begin_moment = Rational (0)
317 self.pending_multibar = Rational (0)
319 def _insert_multibar (self):
320 r = musicexp.MultiMeasureRest ()
321 r.duration = musicexp.Duration()
322 r.duration.duration_log = 0
323 r.duration.factor = self.pending_multibar
324 self.elements.append (r)
325 self.begin_moment = self.end_moment
326 self.end_moment = self.begin_moment + self.pending_multibar
327 self.pending_multibar = Rational (0)
329 def add_multibar_rest (self, duration):
330 self.pending_multibar += duration
333 def add_music (self, music, duration):
334 assert isinstance (music, musicexp.Music)
335 if self.pending_multibar > Rational (0):
336 self._insert_multibar ()
338 self.elements.append (music)
339 self.begin_moment = self.end_moment
340 self.end_moment = self.begin_moment + duration
342 def add_bar_check (self, number):
343 b = musicexp.BarCheck ()
344 b.bar_number = number
345 self.add_music (b, Rational (0))
347 def jumpto (self, moment):
348 current_end = self.end_moment + self.pending_multibar
349 diff = moment - current_end
351 if diff < Rational (0):
352 print 'Negative skip', diff
355 if diff > Rational (0):
356 skip = musicexp.SkipEvent()
357 skip.duration.duration_log = 0
358 skip.duration.factor = diff
360 evc = musicexp.EventChord ()
361 evc.elements.append (skip)
362 self.add_music (evc, diff)
364 def last_event_chord (self, starting_at):
368 and isinstance (self.elements[-1], musicexp.EventChord)
369 and self.begin_moment == starting_at):
370 value = self.elements[-1]
372 self.jumpto (starting_at)
377 def correct_negative_skip (self, goto):
378 self.end_moment = goto
379 self.begin_moment = goto
380 evc = musicexp.EventChord ()
381 self.elements.append (evc)
383 def musicxml_voice_to_lily_voice (voice):
387 voice_builder = LilyPondVoiceBuilder()
389 for n in voice._elements:
390 if n.get_name () == 'forward':
393 if not n.get_maybe_exist_named_child ('chord'):
395 voice_builder.jumpto (n._when)
396 except NegativeSkip, neg:
397 voice_builder.correct_negative_skip (n._when)
398 n.message ("Negative skip? from %s to %s, diff %s" % (neg.here, neg.dest, neg.dest - neg.here))
400 if isinstance (n, musicxml.Attributes):
401 if n.is_first () and n._measure_position == Rational (0):
403 number = int (n.get_parent ().number)
407 voice_builder.add_bar_check (number)
408 for a in musicxml_attributes_to_lily (n):
409 voice_builder.add_music (a, Rational (0))
412 if not n.__class__.__name__ == 'Note':
413 print 'not a Note or Attributes?', n
416 rest = n.get_maybe_exist_typed_child (musicxml.Rest)
418 and rest.is_whole_measure ()):
420 voice_builder.add_multibar_rest (n._duration)
423 if n.is_first () and n._measure_position == Rational (0):
425 num = int (n.get_parent ().number)
428 voice_builder.add_bar_check (num)
430 main_event = musicxml_note_to_lily_main_event (n)
433 if main_event.drum_type:
434 modes_found['drummode'] = True
435 except AttributeError:
439 ev_chord = voice_builder.last_event_chord (n._when)
441 ev_chord = musicexp.EventChord()
442 voice_builder.add_music (ev_chord, n._duration)
444 ev_chord.append (main_event)
446 notations = n.get_maybe_exist_typed_child (musicxml.Notations)
450 # The <notation> element can have the following children (+ means implemented, ~ partially, - not):
451 # +tied | +slur | +tuplet | glissando | slide |
452 # ornaments | technical | articulations | dynamics |
453 # +fermata | arpeggiate | non-arpeggiate |
454 # accidental-mark | other-notation
456 if notations.get_tuplet():
457 tuplet_event = notations.get_tuplet()
458 mod = n.get_maybe_exist_typed_child (musicxml.Time_modification)
461 frac = mod.get_fraction ()
463 tuplet_events.append ((ev_chord, tuplet_event, frac))
465 slurs = [s for s in notations.get_named_children ('slur')
466 if s.get_type () in ('start','stop')]
469 print 'more than 1 slur?'
471 lily_ev = musicxml_spanner_to_lily_event (slurs[0])
472 ev_chord.append (lily_ev)
474 mxl_tie = notations.get_tie ()
475 if mxl_tie and mxl_tie.type == 'start':
476 ev_chord.append (musicexp.TieEvent ())
478 fermatas = notations.get_named_children ('fermata')
480 ev = musicxml_fermata_to_lily_event (a);
484 # Articulations can contain the following child elements:
485 # accent | strong-accent | staccato | tenuto |
486 # detached-legato | staccatissimo | spiccato |
487 # scoop | plop | doit | falloff | breath-mark |
488 # caesura | stress | unstress
489 # Technical can contain the following child elements:
490 # up-bow | down-bow | harmonic | open-string |
491 # thumb-position | fingering | pluck | double-tongue |
492 # triple-tongue | stopped | snap-pizzicato | fret |
493 # string | hammer-on | pull-off | bend | tap | heel |
494 # toe | fingernails | other-technical
495 # Ornaments can contain the following child elements:
496 # trill-mark | turn | delayed-turn | inverted-turn |
497 # shake | wavy-line | mordent | inverted-mordent |
498 # schleifer | tremolo | other-ornament, accidental-mark
499 ornaments = notations.get_named_children ('ornaments')
501 for ch in a.get_named_children ('tremolo'):
502 ev = musicxml_tremolo_to_lily_event (ch)
506 ornaments += notations.get_named_children ('articulations')
507 ornaments += notations.get_named_children ('technical')
510 for ch in a.get_all_children ():
511 ev = musicxml_articulation_to_lily_event (ch)
515 mxl_beams = [b for b in n.get_named_children ('beam')
516 if (b.get_type () in ('begin', 'end')
517 and b.is_primary ())]
519 beam_ev = musicxml_spanner_to_lily_event (mxl_beams[0])
521 ev_chord.append (beam_ev)
524 mod = n.get_maybe_exist_typed_child (musicxml.Time_modification)
527 frac = mod.get_fraction ()
529 tuplet_events.append ((ev_chord, tuplet_event, frac))
531 ## force trailing mm rests to be written out.
532 voice_builder.add_music (musicexp.EventChord (), Rational (0))
534 ly_voice = group_tuplets (voice_builder.elements, tuplet_events)
536 seq_music = musicexp.SequentialMusic()
538 if 'drummode' in modes_found.keys ():
539 ## \key <pitch> barfs in drummode.
540 ly_voice = [e for e in ly_voice
541 if not isinstance(e, musicexp.KeySignatureChange)]
543 seq_music.elements = ly_voice
547 if len (modes_found) > 1:
548 print 'Too many modes found', modes_found.keys ()
550 return_value = seq_music
551 for mode in modes_found.keys ():
552 v = musicexp.ModeChangingMusicWrapper()
553 v.element = return_value
560 def musicxml_id_to_lily (id):
561 digits = ['Zero', 'One', 'Two', 'Three', 'Four', 'Five', 'Six', 'Seven', 'Eight',
565 d = digits.index (dig)
566 id = re.sub ('%d' % d, dig, id)
568 id = re.sub ('[^a-zA-Z]', 'X', id)
572 def musicxml_pitch_to_lily (mxl_pitch):
574 p.alteration = mxl_pitch.get_alteration ()
575 p.step = (ord (mxl_pitch.get_step ()) - ord ('A') + 7 - 2) % 7
576 p.octave = mxl_pitch.get_octave () - 4
579 def voices_in_part (part):
580 """Return a Name -> Voice dictionary for PART"""
582 part.extract_voices ()
583 voice_dict = part.get_voices ()
587 def voices_in_part_in_parts (parts):
588 """return a Part -> Name -> Voice dictionary"""
589 return dict([(p, voices_in_part (p)) for p in parts])
592 def get_all_voices (parts):
593 all_voices = voices_in_part_in_parts (parts)
596 for p, name_voice in all_voices.items ():
599 for n, v in name_voice.items ():
600 progress ("Converting to LilyPond expressions...")
601 part_ly_voices[n] = (musicxml_voice_to_lily_voice (v), v)
603 all_ly_voices[p] = part_ly_voices
608 def option_parser ():
609 p = ly.get_option_parser(usage=_ ("musicxml2ly FILE.xml"),
610 version=('''%prog (LilyPond) @TOPLEVEL_VERSION@\n\n'''
612 _ ("""This program is free software. It is covered by the GNU General Public
613 License and you are welcome to change it and/or distribute copies of it
614 under certain conditions. Invoke as `%s --warranty' for more
615 information.""") % 'lilypond'
617 Copyright (c) 2005--2007 by
618 Han-Wen Nienhuys <hanwen@xs4all.nl> and
619 Jan Nieuwenhuizen <janneke@gnu.org>
621 description=_ ("Convert %s to LilyPond input.") % 'MusicXML' + "\n")
622 p.add_option ('-v', '--verbose',
625 help=_ ("be verbose"))
627 p.add_option ('', '--lxml',
631 help=_ ("Use lxml.etree; uses less memory and cpu time."))
633 p.add_option ('-o', '--output',
639 help=_ ("set output filename to FILE"))
640 p.add_option_group ('bugs',
641 description=(_ ("Report bugs via")
642 + ''' http://post.gmane.org/post.php'''
643 '''?group=gmane.comp.gnu.lilypond.bugs\n'''))
646 def music_xml_voice_name_to_lily_name (part, name):
647 str = "Part%sVoice%s" % (part.id, name)
648 return musicxml_id_to_lily (str)
650 def print_voice_definitions (printer, part_list, voices):
652 for (part, nv_dict) in voices.items():
653 part_dict[part.id] = (part, nv_dict)
655 for part in part_list:
656 (part, nv_dict) = part_dict[part.id]
657 for (name, (voice, mxlvoice)) in nv_dict.items ():
658 k = music_xml_voice_name_to_lily_name (part, name)
659 printer.dump ('%s = ' % k)
660 voice.print_ly (printer)
665 return dict ([(elt,1) for elt in l]).keys ()
667 def print_score_setup (printer, part_list, voices):
668 part_dict = dict ([(p.id, p) for p in voices.keys ()])
672 for part_definition in part_list:
673 part_name = part_definition.id
675 part = part_dict[part_name]
677 print 'unknown part in part-list:', part_name
680 nv_dict = voices[part]
681 staves = reduce (lambda x,y: x+ y,
682 [mxlvoice._staves.keys ()
683 for (v, mxlvoice) in nv_dict.values ()],
687 staves = uniq_list (staves)
689 printer ('\\context PianoStaff << ')
693 staff_voices = [music_xml_voice_name_to_lily_name (part, voice_name)
694 for (voice_name, (v, mxlvoice)) in nv_dict.items ()
695 if mxlvoice._start_staff == s]
697 printer ('\\context Staff = "%s" << ' % s)
699 for v in staff_voices:
700 printer ('\\context Voice = "%s" \\%s' % (v,v))
709 printer ('\\new Staff <<')
711 for (n,v) in nv_dict.items ():
713 n = music_xml_voice_name_to_lily_name (part, n)
714 printer ('\\context Voice = "%s" \\%s' % (n,n))
721 def print_ly_preamble (printer, filename):
722 printer.dump_version ()
723 printer.print_verbatim ('%% automatically converted from %s\n' % filename)
725 def read_musicxml (filename, use_lxml):
729 tree = lxml.etree.parse (filename)
730 mxl_tree = musicxml.lxml_demarshal_node (tree.getroot ())
733 from xml.dom import minidom, Node
735 doc = minidom.parse(filename)
736 node = doc.documentElement
737 return musicxml.minidom_demarshal_node (node)
742 def convert (filename, options):
743 progress ("Reading MusicXML from %s ..." % filename)
745 tree = read_musicxml (filename, options.use_lxml)
748 id_instrument_map = {}
749 if tree.get_maybe_exist_typed_child (musicxml.Part_list):
750 mxl_pl = tree.get_maybe_exist_typed_child (musicxml.Part_list)
751 part_list = mxl_pl.get_named_children ("score-part")
753 parts = tree.get_typed_children (musicxml.Part)
754 voices = get_all_voices (parts)
756 if not options.output_name:
757 options.output_name = os.path.basename (filename)
758 options.output_name = os.path.splitext (options.output_name)[0]
761 defs_ly_name = options.output_name + '-defs.ly'
762 driver_ly_name = options.output_name + '.ly'
764 printer = musicexp.Output_printer()
765 progress ("Output to `%s'" % defs_ly_name)
766 printer.set_file (open (defs_ly_name, 'w'))
768 print_ly_preamble (printer, filename)
769 print_voice_definitions (printer, part_list, voices)
774 progress ("Output to `%s'" % driver_ly_name)
775 printer = musicexp.Output_printer()
776 printer.set_file (open (driver_ly_name, 'w'))
777 print_ly_preamble (printer, filename)
778 printer.dump (r'\include "%s"' % defs_ly_name)
779 print_score_setup (printer, part_list, voices)
786 opt_parser = option_parser()
788 (options, args) = opt_parser.parse_args ()
790 opt_parser.print_usage()
793 voices = convert (args[0], options)
795 if __name__ == '__main__':