def pitchQuarterLengthUsage3D(show=True):
from music21 import converter, graph
from music21.musicxml import testFiles as xml
from music21.humdrum import testFiles as kern
mozartStream = music21.parse(
xml.mozartTrioK581Excerpt)
g = graph.Plot3DBarsPitchSpaceQuarterLength(
mozartStream.flat.stripTies(), colors=['r'])
g.process()
chopinStream = music21.parse(kern.mazurka6)
g = graph.Plot3DBarsPitchSpaceQuarterLength(
chopinStream.flat.stripTies(), colors=['b'])
g.process()
def simple4d():
# question 11: Assemble syllables into words for some vocal text.
import webbrowser
from music21 import converter
from music21 import text
for part in music21.parse('d:/web/eclipse/music21misc/musicxmlLib/Binchois.xml'):
lyrics = text.assembleLyrics(part)
if 'exultavit' in lyrics:
print(lyrics)
webbrowser.open('http://www.google.com/search?&q=' + lyrics)
def make_songs_from_path(path, extension="xml"):
filenames = glob.glob(os.path.join(path, "*/*.{0}".format(extension)))
result = []
# We need to catch the kern files that music21 doesn't know how to
# read (usually the ones with complex rhythm)
for filename in filenames:
print filename
try:
score = music21.parse(filename)
result.append(make_song(score, filename))
except ValueError as error:
print "ERROR: not reading file: ", filename, error
return result
def simple4d():
'''
question 11: Assemble syllables into words for some vocal text.
music21 extension: then Google the lyrics if they contain the word exultavit
'''
import webbrowser
from music21 import converter
from music21 import text
for part in music21.parse('d:/web/eclipse/music21misc/musicxmlLib/Binchois.xml'):
lyrics = text.assembleLyrics(part)
if 'exultavit' in lyrics:
print(lyrics)
webbrowser.open('http://www.google.com/search?&q=' + lyrics)
def pitchedPhase(cycles=None, show=False):
'''
Creates a phase composition in the style of
1970s minimalism, but bitonally.
The source code describes how this works.
>>> from music21 import *
>>> #_DOCS_SHOW composition.phasing.pitchedPhase(cycles = 4, show = True)
.. image:: images/phasingDemo.*
:width: 576
'''
sSrc = music21.parse("""E16 F# B c# d F# E c# B F# d c#
E16 F# B c# d F# E c# B F# d c#""", '12/16')
sPost = stream.Score()
sPost.title = 'phasing experiment'
sPost.insert(0, stream.Part())
sPost.insert(0, stream.Part())
durationToShift = duration.Duration('64th')
increment = durationToShift.quarterLength
if cycles == None:
cycles = int(round(1/increment)) + 1
for i in range(cycles):
sPost.parts[0].append(copy.deepcopy(sSrc))
sMod = copy.deepcopy(sSrc)
# increment last note
sMod.notesAndRests[-1].quarterLength += increment
randInterval = random.randint(-12,12)
#sMod.transpose(randInterval, inPlace=True)
sPost.parts[1].append(sMod)
if show:
sPost.show('midi')
sPost.show()
else: # get musicxml
post = sPost.musicxml
def parse_fugue(fuga_number, volume=1, ext='xml'):
filename = 'wtc-{v}/wtc{v}f{n:02}.{ext}'.format(n=fuga_number, v=volume, ext=ext)
return music21.parse(filename)
def parse_answer(fugue_number, volume=1):
answer_file = "answer/wtc-{v}-{n:02}.xml".format(n=fugue_number, v=volume)
return music21.parse(answer_file)
def show(self):
music21.parse(self.full_filename).show()