def lyricFromVerse(self, verse):
'''
returns a :class:`~music21.note.Lyric` object from a <verse> tag
>>> ci = capella.fromCapellaXML.CapellaImporter()
>>> verse = ci.domElementFromText('<verse i="0" hyphen="true">di"</verse>')
>>> ci.lyricFromVerse(verse)
<music21.note.Lyric number=1 syllabic=begin text="di"">
Does not yet support 'align' attribute
if the text is empty, returns None
'''
verseNumber = 1
syllabic = 'single'
if 'i' in verse.attrib:
verseNumber = int(verse.attrib['i']) + 1
if 'hyphen' in verse.attrib and verse.attrib['hyphen'] == 'true':
syllabic = 'begin'
text = verse.text
if text is None or text == "":
return None
else:
lyric = note.Lyric(text=text,
number=verseNumber,
syllabic=syllabic,
applyRaw=True)
return lyric
def lyricFromVerse(self, verse):
'''
returns a :class:`~music21.note.Lyric` object from a <verse> tag
>>> ci = capella.fromCapellaXML.CapellaImporter()
>>> verse = ci.domElementFromText('<verse i="0" hyphen="true">di"</verse>')
>>> ci.lyricFromVerse(verse)
<music21.note.Lyric number=1 syllabic=begin text="di"">
Does not yet support 'align' attribute
if the text is empty, returns None
'''
verseNumber = 1
syllabic = 'single'
text = None
if 'i' in verse._attrs:
verseNumber = int(verse._attrs['i'].value) + 1
if 'hyphen' in verse._attrs and verse._attrs['hyphen'].value == 'true':
syllabic = 'begin'
for d in verse.childNodes:
if d.nodeType == xml.dom.Node.TEXT_NODE:
text = d.nodeValue
if text is None:
return None
else:
lyric = note.Lyric(text=text,
number=verseNumber,
syllabic=syllabic,
applyRaw=True)
return lyric
def lyric(self, value):
notes = self.flat.notes
if len(notes) > 0:
if type(value) is str:
l = note.Lyric(text=value, applyRaw=True)
notes[0].lyrics = [l]
elif isinstance(value, note.Lyric):
notes[0].lyrics = [value]
else:
self.editorial.lyric = value
def addOptionalTieAndLyrics(self, rn, lastChord):
'''
Adds ties to chords that are the same. Adds lyrics to chords that change.
'''
same = self.isSame(rn, lastChord)
if same is False and lastChord is not None and lastChord.tie is not None:
lastChord.tie.type = 'stop'
if same is False and (self.parent is None or self.parent.labelRomanNumerals is True):
rn.lyrics.append(note.Lyric(rn.figure, number=1))
if same is True and lastChord is not None and lastChord.tie is None:
lastChord.tie = tie.Tie('start')
rn.tie = tie.Tie('stop')
elif same is True and lastChord is not None and lastChord.tie is not None:
lastChord.tie.type = 'continue'
rn.tie = tie.Tie('stop')
def testBasicA(self):
from music21 import note
unused_t1 = note.Lyric('test')
#print t1.json
n1 = note.Note('G#3', quarterLength=3)
n1.lyric = 'testing'
self.assertEqual(n1.pitch.nameWithOctave, 'G#3')
self.assertEqual(n1.quarterLength, 3.0)
self.assertEqual(n1.lyric, 'testing')
n2 = note.Note()
raw = freezeThaw.JSONFreezer(n1).json
freezeThaw.JSONThawer(n2).json = raw
self.assertEqual(n2.pitch.nameWithOctave, 'G#3')
self.assertEqual(n2.quarterLength, 3.0)
def testSimpleFile(self):
s = GregorianStream()
s.append(clef.AltoClef())
n = GregorianNote("C4")
l = note.Lyric("Po")
l.syllabic = "start"
n.lyrics.append(l)
n.oriscus = True
s.append(n)
n2 = GregorianNote("D4")
s.append(n2)
n3 = GregorianNote("C4")
n3.stropha = True
s.append(n3)
n4 = GregorianNote("B3")
n4.stropha = True
s.append(n4)
gabcText = s.toGABCText()
bsc = BaseScoreConverter()
bsc.score = gabcText
bsc.incipit = "Populus"
bsc.mode = 'VII'
fn = bsc.writeFile("style: modern;\n\n%%\n" + gabcText)
texfn = bsc.launchGregorio(fn)
texfh = open(texfn)
texcontents = texfh.read()
texfh.close()
bsc.score = texcontents
dtw = DefaultTeXWrapper()
newgabcText = dtw.substituteInfo(bsc)
texfh2 = open(texfn, 'w')
texfh2.write(newgabcText)
texfh2.close()
pdffn = bsc.launchLaTeX(texfn)
os.system('open %s' % pdffn)
def expand(self, ts=None, ks=None):
'''
The meat of it all -- expand one rule completely and return a list of Measure objects.
'''
if ts is None:
ts = meter.TimeSignature('4/4')
if ks is None:
ks = key.Key('C')
measures = []
lastRegularAtom = None
lastChord = None
for content, sep, numReps in self._measureGroups():
lastChordIsInSameMeasure = False
if sep == "$":
if content not in self.parent.rules:
raise CTRuleException(
"Cannot expand rule {0} in {2}".format(content, self))
rule = self.parent.rules[content]
for i in range(numReps):
returnedMeasures = rule.expand(ts, ks)
self.insertKsTs(returnedMeasures[0], ts, ks)
for m in returnedMeasures:
tsEs = m.iter.getElementsByClass('TimeSignature')
for returnedTs in tsEs:
if returnedTs is not ts:
# the TS changed mid-rule; create a new one for return.
ts = copy.deepcopy(ts)
measures.extend(returnedMeasures)
elif sep == "|":
m = stream.Measure()
atoms = content.split()
# key/timeSig pass...
regularAtoms = []
for atom in atoms:
if atom.startswith('['):
atomContent = atom[1:-1]
if atomContent == '0':
ts = meter.TimeSignature('4/4')
# irregular meter. Cannot fully represent;
#TODO: replace w/ senza misura when possible.
elif '/' in atomContent: # only one key / ts per measure.
ts = meter.TimeSignature(atomContent)
else:
ks = key.Key(
key.convertKeyStringToMusic21KeyString(
atomContent))
elif atom == '.':
if lastRegularAtom is None:
raise CTRuleException(" . w/o previous atom: %s" %
self)
regularAtoms.append(lastRegularAtom)
elif atom in ("", None):
pass
else:
regularAtoms.append(atom)
lastRegularAtom = atom
numAtoms = len(regularAtoms)
if numAtoms == 0:
continue # maybe just ts and ks setting
self.insertKsTs(m, ts, ks)
atomLength = common.opFrac(ts.barDuration.quarterLength /
numAtoms)
for atom in regularAtoms:
if atom == 'R':
rest = note.Rest(quarterLength=atomLength)
lastChord = None
lastChordIsInSameMeasure = False
m.append(rest)
else:
atom = self.fixupChordAtom(atom)
rn = roman.RomanNumeral(atom, ks)
if self.isSame(rn,
lastChord) and lastChordIsInSameMeasure:
lastChord.duration.quarterLength += atomLength
m.elementsChanged()
else:
rn.duration.quarterLength = atomLength
self.addOptionalTieAndLyrics(rn, lastChord)
lastChord = rn
lastChordIsInSameMeasure = True
m.append(rn)
measures.append(m)
for i in range(1, numReps):
measures.append(copy.deepcopy(m))
else:
environLocal.warn(
"Rule found without | or $, ignoring: '{0}','{1}': in {2}".
format(content, sep, self.text))
#pass
if len(measures) > 0:
for m in measures:
noteIter = m.recurse().notes
if (noteIter
and (self.parent is None
or self.parent.labelSubsectionsOnScore is True)
and self.LHS != 'S'):
rn = noteIter[0]
lyricNum = len(rn.lyrics) + 1
rn.lyrics.append(note.Lyric(self.LHS, number=lyricNum))
break
return measures
def lowerLines():
restLengths = [
0, 16, 12, 11, 10, 7, 6, 7, 6, 5, 4, 3, 8, 10, 12, 14, 16, 17, 18, 19,
20
]
correctTranspositions = [-1, 2, -3, -3, 1, 1, 6, 3,
-2] # correct the first note of rotations 13-21
fixLastNoteLengths = {11: 4.5, 12: 3, 13: 2.5, 14: 2, 15: 1.5, 20: 10.5}
currentNote = 0
rotationNumber = 1
myRow = stream.Part()
for phraseNumber in range(1, 21):
myRow.append(note.Rest(quarterLength=restLengths[phraseNumber] / 2.0))
if phraseNumber == 8: ## inconsistency in RCS's scheme
currentNote += 2
for addNote in range(21 - phraseNumber):
if rotationNumber <= 10 or rotationNumber >= 20:
#default
appendNote = copy.deepcopy(rowNotes[currentNote % 10])
else: # second set of rotations is up a step:
appendNote = rowNotes[currentNote % 10].transpose(2)
# if phraseNumber == 8 and addNote == 9: # mistaken transpositions by RCS
# appendNote = appendNote.transpose(-1)
# appendNote.lyrics.append(note.Lyric(text="*", number=3))
#
# elif phraseNumber == 9 and addNote == 6:
# appendNote = appendNote.transpose(2)
# appendNote.lyrics.append(note.Lyric(text="*", number=3))
if addNote == 0:
if phraseNumber != 8:
appendNote.lyrics.append(
note.Lyric(text="p" + str(phraseNumber), number=1))
else:
appendNote.lyrics.append(note.Lyric(text="p8*", number=1))
if (currentNote % 10
== (rotationNumber + 8) % 10) and (currentNote != 0):
currentNote += 2
rotationNumber += 1
else:
if (currentNote % 10 == (rotationNumber + 9) % 10):
appendNote.lyrics.append(
note.Lyric(text="r" + str(rotationNumber), number=2))
if rotationNumber in range(13, 22):
appendNote.transpose(
correctTranspositions[rotationNumber - 13],
inPlace=True)
appendNote.pitch.simplifyEnharmonic(inPlace=True)
appendNote.lyrics.append(note.Lyric(text="*",
number=3))
currentNote += 1
if addNote == 20 - phraseNumber: # correct Last Notes
#if phraseNumber == 12: # bug in Finale for accidental display?
# appendNote.pitch.accidental.displayStatus = True
if phraseNumber in fixLastNoteLengths:
appendNote.quarterLength = fixLastNoteLengths[phraseNumber]
myRow.append(appendNote)
#retrograde
totalNotes = len(myRow)
for i in range(2, totalNotes + 1): #skip last note
el = myRow[totalNotes - i]
if 'Note' in el.classes:
elNote = el.transpose('A1')
elNote.pitch.simplifyEnharmonic(inPlace=True)
elNote.lyrics = []
myRow.append(elNote)
else:
elRest = copy.deepcopy(el) # rests
if i == 2:
elRest.quarterLength = 11.5
myRow.append(elRest)
myRow.insert(0, meter.TimeSignature('2/2'))
myRow.show()
