def testTrecentoMadrigal(self):
from music21 import corpus
# c = corpus.parse('beethoven/opus18no1', 2).measures(1, 19)
c = corpus.parse('PMFC_06_Giovanni-05_Donna').measures(1, 30)
# c = corpus.parse('PMFC_06_Giovanni-05_Donna').measures(90, 118)
# c = corpus.parse('PMFC_06_Piero_1').measures(1, 10)
# c = corpus.parse('PMFC_06-Jacopo').measures(1, 30)
# c = corpus.parse('PMFC_12_13').measures(1, 40)
# fix clef
fixClef = True
if fixClef:
startClefs = c.parts[1].getElementsByClass(
'Measure').first().getElementsByClass('Clef')
if startClefs:
clef1 = startClefs[0]
c.parts[1].getElementsByClass('Measure').first().remove(clef1)
c.parts[1].getElementsByClass('Measure').first().insert(
0, clef.Treble8vbClef())
cr = ChordReducer()
# cr.printDebug = True
p = cr.multiPartReduction(c, maxChords=3)
# p = cr.multiPartReduction(c, closedPosition=True)
from music21 import key, roman
cm = key.Key('G')
for thisChord in p.recurse().getElementsByClass('Chord'):
thisChord.lyric = roman.romanNumeralFromChord(
thisChord, cm, preferSecondaryDominants=True).figure
c.insert(0, p)
if self.show:
c.show()
def testTrecentoMadrigal(self):
from music21 import corpus
#c = corpus.parse('beethoven/opus18no1', 2).measures(1, 19)
c = corpus.parse('PMFC_06_Giovanni-05_Donna').measures(1, 30)
#c = corpus.parse('PMFC_06_Giovanni-05_Donna').measures(90, 118)
#c = corpus.parse('PMFC_06_Piero_1').measures(1, 10)
#c = corpus.parse('PMFC_06-Jacopo').measures(1, 30)
#c = corpus.parse('PMFC_12_13').measures(1, 40)
# fix clef
fixClef = True
if fixClef:
from music21 import clef
startClefs = c.parts[1].getElementsByClass(
'Measure')[0].getElementsByClass('Clef')
if len(startClefs):
clef1 = startClefs[0]
c.parts[1].getElementsByClass('Measure')[0].remove(clef1)
c.parts[1].getElementsByClass('Measure')[0].insert(
0, clef.Treble8vbClef())
cr = ChordReducer()
#cr.printDebug = True
p = cr.multiPartReduction(c, maxChords=3)
#p = cr.multiPartReduction(c, closedPosition=True)
c.insert(0, p)
c.show()
def bestClef(self):
'''Returns the clef that is the best fit for the stream.'''
totalNotes = 0
totalHeight = 0.0
for thisNote in self.notesAndRests:
if isinstance(thisNote, note.Note):
totalNotes += 1
totalHeight += thisNote.diatonicNoteNum
if thisNote.diatonicNoteNum > 33: # a4
totalHeight += 3 # bonus
elif thisNote.diatonicNoteNum < 24: # Bass F or lower
totalHeight += -3 # bonus
if totalNotes == 0:
averageHeight = 29
else:
averageHeight = totalHeight / totalNotes
if self.debug is True:
print "Average Clef Height: " + str(averageHeight) + " "
# c4 = 32
if (self.allowTreble8va == False):
if averageHeight > 28: # c4
return clef.TrebleClef()
else:
return clef.BassClef()
else:
if averageHeight > 32: # g4
return clef.TrebleClef()
elif averageHeight > 26: # a3
return clef.Treble8vbClef()
else:
return clef.BassClef()
def createClef(self, attributes):
r'''
Add a new clef to the current measure and return the currentClef.
Clef lines should look like: \|Clef\|Type:ClefType or
\|Clef\|Type:ClefType\|OctaveShift:Octave Down (or Up)
>>> nwt = noteworthy.translate.NoteworthyTranslator()
>>> nwt.currentMeasure = stream.Measure()
>>> nwt.createClef({"Type": "Treble"})
>>> nwt.currentMeasure.show('text')
{0.0} <music21.clef.TrebleClef>
>>> nwt.currentClef
'TREBLE'
>>> nwt.createClef({"Type" : "Bass", "OctaveShift" : "Octave Down"})
>>> nwt.currentMeasure.show('text')
{0.0} <music21.clef.TrebleClef>
{0.0} <music21.clef.Bass8vbClef>
If no clef can be found then it raises a NoteworthyTranslate exception
>>> nwt.createClef({"Type" : "OBonobo"})
Traceback (most recent call last):
NoteworthyTranslateException: Did not find a proper clef in type, OBonobo
'''
currentClef = None
if 'OctaveShift' in attributes:
if attributes['OctaveShift'] == 'Octave Down':
octaveShift = -1
elif attributes['OctaveShift'] == 'Octave Up':
octaveShift = 1
else:
raise NoteworthyTranslateException(
'Did not get a proper octave shift from %s' % attributes[3])
else:
octaveShift = 0
cl = attributes['Type']
if cl == "Treble":
if octaveShift == 0:
self.currentMeasure.append(clef.TrebleClef())
currentClef = "TREBLE"
elif octaveShift == -1:
self.currentMeasure.append(clef.Treble8vbClef())
currentClef = "TREBLE8dw"
elif octaveShift == 1:
self.currentMeasure.append(clef.Treble8vaClef())
currentClef = "TREBLE8up"
elif cl == "Bass":
if octaveShift == 0:
self.currentMeasure.append(clef.BassClef())
currentClef = "BASS"
elif octaveShift == -1:
self.currentMeasure.append(clef.Bass8vbClef())
currentClef = "BASS8dw"
elif octaveShift == 1:
self.currentMeasure.append(clef.Bass8vaClef())
currentClef = "BASS8up"
elif cl == "Alto":
if octaveShift != 0:
raise NoteworthyTranslateException('cannot shift octaves on an alto clef')
self.currentMeasure.append(clef.AltoClef())
currentClef = "ALTO"
elif cl == "Tenor":
if octaveShift != 0:
raise NoteworthyTranslateException('cannot shift octaves on a tenor clef')
self.currentMeasure.append(clef.TenorClef())
currentClef = "TENOR"
if currentClef is None:
raise NoteworthyTranslateException('Did not find a proper clef in type, %s' % cl)
self.currentClef = currentClef
def test_clef_to_lily_1(self):
bee_ell = clef.Treble8vbClef()
expected = u"\\clef \"treble_8\"\n"
self.assertEqual(functions.clef_to_lily(bee_ell), expected)
def partPari(show = True):
'''
generate the score of Arvo Pärt's "Pari Intervallo" algorithmically
using music21.scale.ConcreteScale() to simulate Tintinabulation.
'''
s = stream.Score()
cminor = key.Key('c')
#real Paert
main = converter.parse("tinynotation: 4/4 E-1 C D E- F G F E- D C D E- G A- F G E- F G F E- D F G c B- c G A- B- c B- A- B- G c e- d c d c B- A- G F E- F G c E- F G E- D E- F E- D C E- G F E- C F E- D C E- D C D C~ C")
# fake Paert
#main = converter.parse("E-1 F G A- G F c d e- G A- F E- D d e- c B- A- c d A- G F G F A- B- A- c d A- B- c B- A- G F G F E-~ E-", '4/4')
main.__class__ = stream.Part
main.transpose('P8', inPlace=True)
main.insert(0, cminor)
main.insert(0, instrument.Recorder())
bass = copy.deepcopy(main.flat)
for n in bass.notes:
n.pitch.diatonicNoteNum = n.pitch.diatonicNoteNum - 9
if (n.pitch.step == 'A' or n.pitch.step == 'B') and n.pitch.octave == 2:
n.accidental = pitch.Accidental('natural')
else:
n.accidental = cminor.accidentalByStep(n.step)
if n.offset == (2-1) * 4 or n.offset == (74-1) * 4:
n.pitch = pitch.Pitch("C3") # exceptions to rule
elif n.offset == (73 - 1) * 4:
n.tie = None
n.pitch = pitch.Pitch("C3")
top = copy.deepcopy(main.flat)
main.insert(0, clef.Treble8vbClef())
middle = copy.deepcopy(main.flat)
cMinorArpeg = scale.ConcreteScale(pitches = ["C2","E-2","G2"])
# dummy test on other data
#myA = pitch.Pitch("A2")
#myA.microtone = -15
#cMinorArpeg = scale.ConcreteScale(pitches = ["C2", "E`2", "F~2", myA])
lastNote = top.notes[-1]
top.remove(lastNote)
for n in top:
if 'Note' in n.classes:
n.pitch = cMinorArpeg.next(n.pitch, stepSize=2)
if n.offset != (73-1)*4.0: # m. 73 is different
n.duration.quarterLength = 3.0
top.insert(n.offset + 3, note.Rest())
else:
n.duration.quarterLength = 6.0
n.tie = None
r1 = note.Rest(type = 'half')
top.insertAndShift(0, r1)
top.getElementsByClass(key.Key)[0].setOffsetBySite(top, 0)
lastNote = middle.notes[-1]
middle.remove(lastNote)
for n in middle:
if 'Note' in n.classes:
n.pitch = cMinorArpeg.next(n.pitch, direction=scale.DIRECTION_DESCENDING, stepSize=2)
if n.offset != (73-1)*4.0: # m. 73 is different
n.duration.quarterLength = 3.0
middle.insert(n.offset + 3, note.Rest())
else:
n.duration.quarterLength = 5.0
n.tie = None
r2 = note.Rest(quarterLength = 3.0)
middle.insertAndShift(0, r2)
middle.getElementsByClass(key.Key)[0].setOffsetBySite(middle, 0)
ttied = top.makeMeasures().makeTies(inPlace=False)
mtied = middle.makeMeasures().makeTies(inPlace=False)
bass.makeMeasures(inPlace = True)
main.makeMeasures(inPlace = True)
s.insert(0, ttied)
s.insert(0, main)
s.insert(0, mtied)
s.insert(0, bass)
for p in s.parts:
p.getElementsByClass(stream.Measure)[-1].rightBarline = bar.Barline('final')
if show == True:
s.show()
def makeCadenceExercise(score,
numberOfBeatsToCut: int = 2,
Alto: bool = True,
Tenor: bool = True,
Bass: bool = True,
shortScore: bool = False,
writeFile: bool = False,
outPath='~/Desktop/',
title=''):
"""
Creates cadence exercises by cutting parts out of a chorale at each fermata cadence.
User chooses:
number of beats to cut,
which parts to cut (A, T, B, or a combination), and
full- or short- score presentation.
"""
# Cut non-SATB parts
# Possible TODO: return these instrumental parts at the end? (if not shortScore)
legalList = ['Soprano', 'Alto', 'Tenor', 'Bass']
if len(score.parts) > 4:
for i in range(len(score.parts))[::-1]:
if score.parts[i].partName not in legalList:
score.remove(score.parts[i])
# Identify fermataPositions
fermataPositions = []
sopNotes = score.parts[0].recurse().notes # NB leave ties in for tied-to fermata.
for note in sopNotes:
if note.expressions: # TODO expressions.Fermata() not working
uniqueOffsetID = note.getOffsetInHierarchy(score.parts[0])
fermataPositions.append(uniqueOffsetID)
# Which to cut
partsRefs = []
if Alto:
partsRefs.append(1)
if Tenor:
partsRefs.append(2)
if Bass:
partsRefs.append(3)
# Separate ex and soln
exercise = deepcopy(score)
solution = deepcopy(score)
# Exercise
for i in partsRefs:
exPart = exercise.parts[i]
for noteOrRest in exPart.recurse().notesAndRests:
noteOrRest.stemDirection = 'unspecified'
uniqueOffsetID = noteOrRest.getOffsetInHierarchy(exPart)
for position in fermataPositions:
if (position-numberOfBeatsToCut) <= uniqueOffsetID <= position:
exPart.remove(noteOrRest, recurse=True)
# Solution (same i references)
solnPart = solution.parts[i]
for noteOrRest in solnPart.recurse().notesAndRests:
noteOrRest.stemDirection = 'unspecified'
uniqueOffsetID = noteOrRest.getOffsetInHierarchy(solnPart)
for position in fermataPositions:
if (position-numberOfBeatsToCut) <= uniqueOffsetID <= position:
noteOrRest.style.color = 'red' # NB Style
if not title:
title = score.metadata.title
# Full or Short Score + writes and returns. Heavy-handed approach to clef.
firstMeasure = exercise.parts[0].getElementsByClass('Measure')[0].measureNumber
if shortScore:
shortEx = exercise.implode()
shortSoln = solution.implode()
shortEx.parts[1].measure(firstMeasure).clef = clef.BassClef()
shortSoln.parts[1].measure(firstMeasure).clef = clef.BassClef()
if writeFile:
shortEx.write('mxl', fp=f'{outPath}Exercise-{title}.mxl')
shortSoln.write('mxl', fp=f'{outPath}Solution-{title}.mxl')
return shortEx, shortSoln
else:
exercise.parts[2].measure(firstMeasure).clef = clef.Treble8vbClef()
solution.parts[2].measure(firstMeasure).clef = clef.Treble8vbClef()
if writeFile:
exercise.write('mxl', fp=f'{outPath}Exercise-{title}.mxl')
solution.write('mxl', fp=f'{outPath}Solution-{title}.mxl')
return exercise, solution
def createClef(self, attributes):
r'''
Add a new clef to the current measure and return the currentClef.
Clef lines should look like: \|Clef\|Type:ClefType or
\|Clef\|Type:ClefType\|OctaveShift:Octave Down (or Up)
>>> nwt = noteworthy.translate.NoteworthyTranslator()
>>> nwt.currentMeasure = stream.Measure()
>>> nwt.createClef({'Type': 'Treble'})
>>> nwt.currentMeasure.show('text')
{0.0} <music21.clef.TrebleClef>
>>> nwt.currentClef
'TREBLE'
>>> nwt.createClef({'Type' : 'Bass', 'OctaveShift' : 'Octave Down'})
>>> nwt.currentMeasure.show('text')
{0.0} <music21.clef.TrebleClef>
{0.0} <music21.clef.Bass8vbClef>
If no clef can be found then it raises a NoteworthyTranslate exception
>>> nwt.createClef({'Type' : 'OrangeClef'})
Traceback (most recent call last):
music21.noteworthy.translate.NoteworthyTranslateException: Did
not find a proper clef in type, OrangeClef
'''
currentClef = None
if 'OctaveShift' in attributes:
if attributes['OctaveShift'] == 'Octave Down':
octaveShift = -1
elif attributes['OctaveShift'] == 'Octave Up':
octaveShift = 1
else:
raise NoteworthyTranslateException(
f'Did not get a proper octave shift from {attributes[3]}')
else:
octaveShift = 0
cl = attributes['Type']
if cl == 'Treble':
if octaveShift == 0:
self.currentMeasure.append(clef.TrebleClef())
currentClef = 'TREBLE'
elif octaveShift == -1:
self.currentMeasure.append(clef.Treble8vbClef())
currentClef = 'TREBLE8dw'
elif octaveShift == 1:
self.currentMeasure.append(clef.Treble8vaClef())
currentClef = 'TREBLE8up'
elif cl == 'Bass':
if octaveShift == 0:
self.currentMeasure.append(clef.BassClef())
currentClef = 'BASS'
elif octaveShift == -1:
self.currentMeasure.append(clef.Bass8vbClef())
currentClef = 'BASS8dw'
elif octaveShift == 1:
self.currentMeasure.append(clef.Bass8vaClef())
currentClef = 'BASS8up'
elif cl == 'Alto':
if octaveShift != 0:
raise NoteworthyTranslateException(
'cannot shift octaves on an alto clef')
self.currentMeasure.append(clef.AltoClef())
currentClef = 'ALTO'
elif cl == 'Tenor':
if octaveShift != 0:
raise NoteworthyTranslateException(
'cannot shift octaves on a tenor clef')
self.currentMeasure.append(clef.TenorClef())
currentClef = 'TENOR'
if currentClef is None:
raise NoteworthyTranslateException(
f'Did not find a proper clef in type, {cl}')
self.currentClef = currentClef
