def testFreezeThawVariant(self):
from music21 import freezeThaw
from music21 import corpus
from music21 import variant
from music21 import stream
from music21 import note
c = corpus.parse('luca/gloria')
data2M2 = [('f', 'eighth'), ('c', 'quarter'), ('a', 'eighth'),
('a', 'quarter')]
stream2 = stream.Stream()
m = stream.Measure()
for pitchName, durType in data2M2:
n = note.Note(pitchName)
n.duration.type = durType
m.append(n)
# stream2.append(n)
stream2.append(m)
# c.show('t')
variant.addVariant(c.parts[0],
6.0,
stream2,
variantName='rhythmic_switch',
replacementDuration=3.0)
# test Variant is in stream
unused_v1 = c.parts[0].getElementsByClass('Variant')[0]
sf = freezeThaw.StreamFreezer(c, fastButUnsafe=True)
# sf.v = v
d = sf.writeStr()
# print(d)
# print('thawing.')
st = freezeThaw.StreamThawer()
st.openStr(d)
s = st.stream
# s.show('lily.pdf')
p0 = s.parts[0]
variants = p0.getElementsByClass('Variant')
v2 = variants[0]
self.assertEqual(v2._stream[0][1].offset, 0.5)
def testFreezeThawVariant(self):
from music21 import freezeThaw
from music21 import corpus
from music21 import variant
from music21 import stream
from music21 import note
c = corpus.parse('luca/gloria')
data2M2 = [('f', 'eighth'), ('c', 'quarter'), ('a', 'eighth'), ('a', 'quarter')]
stream2 = stream.Stream()
m = stream.Measure()
for pitchName,durType in data2M2:
n = note.Note(pitchName)
n.duration.type = durType
m.append(n)
# stream2.append(n)
stream2.append(m)
#c.show('t')
variant.addVariant(c.parts[0], 6.0, stream2,
variantName='rhythmic_switch', replacementDuration=3.0)
#test Variant is in stream
unused_v1 = c.parts[0].getElementsByClass('Variant')[0]
sf = freezeThaw.StreamFreezer(c, fastButUnsafe=True)
#sf.v = v
d = sf.writeStr()
#print d
#print 'thawing.'
st = freezeThaw.StreamThawer()
st.openStr(d)
s = st.stream
#s.show('lily.pdf')
p0 = s.parts[0]
variants = p0.getElementsByClass('Variant')
v2 = variants[0]
self.assertEqual(v2._stream[0][1].offset, 0.5)