def testGetRealizedA(self):
from music21 import volume, dynamics
v1 = volume.Volume(velocity=64)
self.assertEqual(v1.getRealizedStr(), '0.5')
d1 = dynamics.Dynamic('p')
self.assertEqual(v1.getRealizedStr(useDynamicContext=d1), '0.35')
d1 = dynamics.Dynamic('ppp')
self.assertEqual(v1.getRealizedStr(useDynamicContext=d1), '0.15')
d1 = dynamics.Dynamic('fff')
self.assertEqual(v1.getRealizedStr(useDynamicContext=d1), '0.91')
# if vel is at max, can scale down with a dynamic
v1 = volume.Volume(velocity=127)
d1 = dynamics.Dynamic('fff')
self.assertEqual(v1.getRealizedStr(useDynamicContext=d1), '1.0')
d1 = dynamics.Dynamic('ppp')
self.assertEqual(v1.getRealizedStr(useDynamicContext=d1), '0.3')
d1 = dynamics.Dynamic('mp')
self.assertEqual(v1.getRealizedStr(useDynamicContext=d1), '0.9')
d1 = dynamics.Dynamic('p')
self.assertEqual(v1.getRealizedStr(useDynamicContext=d1), '0.7')
def write_song(chords, off=0.0):
#mod_chs = [chord.Chord(ch) for ch in chords]
from music21 import chord, harmony, interval #Chord/Music Theory parsing
from music21 import midi, volume, stream #Music Generation
print(chords)
# chords = [int(c) for c in chords]
mod_chs = []
for ch in chords:
print(ch)
try:
mod_chs.append(chord.Chord(ch))
except:
print("failed...")
pass
for note in mod_chs:
note.volume = volume.Volume(velocity=90)
note.volume.velocityIsRelative = False
note.offset = off
off += 1.2
s = stream.Stream(mod_chs)
print("Moving chords to stream, memory alloc {}".format(s))
mf = midi.translate.streamToMidiFile(s)
#fname = '{}.midi'.format(time.strftime("%Y%m%d-%H%M%S"))
fname = "output.midi"
mf.open(fname, 'wb')
mf.write()
mf.close()
print('done writing midi file')
return fname
def testBasic(self):
from music21 import volume, note
n1 = note.Note()
v = volume.Volume(client=n1)
self.assertEqual(v.client, n1)
del n1
# weak ref does not exist
self.assertEqual(v.client, None)
def testDeepCopyA(self):
import copy
from music21 import volume, note
n1 = note.Note()
v1 = volume.Volume()
v1.velocity = 111
v1.client = n1
v1Copy = copy.deepcopy(v1)
self.assertEqual(v1.velocity, 111)
self.assertEqual(v1Copy.velocity, 111)
self.assertEqual(v1.client, n1)
self.assertEqual(v1Copy.client, n1)
def testGetContextSearchA(self):
from music21 import stream, note, volume, dynamics
s = stream.Stream()
d1 = dynamics.Dynamic('mf')
s.insert(0, d1)
d2 = dynamics.Dynamic('f')
s.insert(2, d2)
n1 = note.Note('g')
v1 = volume.Volume(client=n1)
s.insert(4, n1)
# can get dynamics from volume object
self.assertEqual(v1.client.getContextByClass('Dynamic'), d2)
self.assertEqual(v1.getDynamicContext(), d2)
if __name__ == '__main__':
from music21 import corpus, converter, note, base, volume, duration, stream, environment
p = converter.parse('tinynotation: 3/4 c4 d4 e4 f4 g4 a4').makeMeasures()
s = stream.Score()
s.insert(0, p)
p2 = converter.parse('tinynotation: 3/4 A4 B4 c d e f').makeMeasures()
s.insert(0, p2)
s = corpus.parse('bwv66.6')
n = note.Note()
#s = stream.Stream()
b = base.Music21Object()
v = volume.Volume()
d = duration.Duration()
dataStr = fillTemplate(s)
environLocal = environment.Environment()
ext = '.html'
fp = environLocal.getTempFile(ext)
f = open(fp, 'w')
f.write(dataStr)
f.close()
environLocal.launch(ext, fp)
####
# eof
