def testAddNote(self):
MyMIDI = MIDIFile(1)
MyMIDI.addNote(0, 0, 100,0,1,100)
self.assertEquals(MyMIDI.tracks[0].eventList[0].type, "note")
self.assertEquals(MyMIDI.tracks[0].eventList[0].pitch, 100)
self.assertEquals(MyMIDI.tracks[0].eventList[0].time, 0)
self.assertEquals(MyMIDI.tracks[0].eventList[0].duration, 1)
self.assertEquals(MyMIDI.tracks[0].eventList[0].volume, 100)
def testAddNote(self):
MyMIDI = MIDIFile(1)
MyMIDI.addNote(0, 0, 100, 0, 1, 100)
self.assertEquals(MyMIDI.tracks[0].eventList[0].type, "note")
self.assertEquals(MyMIDI.tracks[0].eventList[0].pitch, 100)
self.assertEquals(MyMIDI.tracks[0].eventList[0].time, 0)
self.assertEquals(MyMIDI.tracks[0].eventList[0].duration, 1)
self.assertEquals(MyMIDI.tracks[0].eventList[0].volume, 100)
class Midi(object):
def __init__(self, number_tracks=1, tempo=60, instrument=0):
"""
instrument: can be an integer or a list
"""
self.number_tracks = number_tracks
self.midi_data = MIDIFile(number_tracks)
for track in range(number_tracks):
self.midi_data.addTrackName(track, 0, "Track {0}".format(track))
self.midi_data.addTempo(track, 0, tempo)
instr = instrument[track] if isinstance(instrument,
list) else instrument
self.midi_data.addProgramChange(track, 0, 0, instr)
def seq_chords(self, seqlist, track=0, time=0):
if track + 1 > self.number_tracks:
raise MidiError("You are trying to use more tracks than we have.")
for item in seqlist:
if isinstance(item, NoteSeq):
volume = item[0].volume
dur = item[0].midi_dur
for note in item:
self.midi_data.addNote(track, 0, note.midi_number, time,
dur, volume)
time += dur
elif isinstance(item, Rest):
time += item.midi_dur
else:
raise MidiError(
"The input should be a list of NoteSeq but yours is a {0}: {1}"
.format(type(seqlist), seqlist))
return time
def seq_notes(self, noteseq, track=0, time=0):
if track + 1 > self.number_tracks:
raise MidiError("You are trying to use more tracks than we have.")
for note in noteseq:
if isinstance(note, Note):
self.midi_data.addNote(track, 0, note.midi_number, time,
note.midi_dur, note.volume)
else:
# we ignore the rests
pass
time += note.midi_dur
return time
def write(self, filename):
if isinstance(filename, str):
with open(filename, 'wb') as midifile:
self.midi_data.writeFile(midifile)
else:
self.midi_data.writeFile(filename)
class Midi(object):
def __init__(self, number_tracks=1, tempo=60, instrument=0):
"""
instrument: can be an integer or a list
"""
self.number_tracks = number_tracks
self.midi_data = MIDIFile(number_tracks)
for track in range(number_tracks):
self.midi_data.addTrackName(track, 0, "Track {0}".format(track))
self.midi_data.addTempo(track, 0, tempo)
instr = instrument[track] if isinstance(instrument, list) else instrument
self.midi_data.addProgramChange(track, 0, 0, instr)
def seq_chords(self, seqlist, track=0, time=0):
if track + 1 > self.number_tracks:
raise MidiError("You are trying to use more tracks than we have.")
for item in seqlist:
if isinstance(item, NoteSeq):
volume = item[0].volume
dur = item[0].midi_dur
for note in item:
self.midi_data.addNote(track, 0, note.midi_number, time, dur, volume)
time += dur
elif isinstance(item, Rest):
time += item.midi_dur
else:
raise MidiError(
"The input should be a list of NoteSeq but yours is a {0}: {1}".format(type(seqlist), seqlist)
)
return time
def seq_notes(self, noteseq, track=0, time=0):
if track + 1 > self.number_tracks:
raise MidiError("You are trying to use more tracks than we have.")
for note in noteseq:
if isinstance(note, Note):
self.midi_data.addNote(track, 0, note.midi_number, time, note.midi_dur, note.volume)
else:
# we ignore the rests
pass
time += note.midi_dur
return time
def write(self, filename):
if isinstance(filename, str):
with open(filename, "wb") as midifile:
self.midi_data.writeFile(midifile)
else:
self.midi_data.writeFile(filename)
def testDeinterleaveNotes(self):
MyMIDI = MIDIFile(1)
MyMIDI.addNote(0, 0, 100, 0, 2, 100)
MyMIDI.addNote(0, 0, 100, 1, 2, 100)
MyMIDI.close()
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].type, 'NoteOn')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].time, 0)
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].type, 'NoteOff')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].time, 128)
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[2].type, 'NoteOn')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[2].time, 0)
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[3].type, 'NoteOff')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[3].time, 256)
def testDeinterleaveNotes(self):
MyMIDI = MIDIFile(1)
MyMIDI.addNote(0, 0, 100, 0, 2, 100)
MyMIDI.addNote(0, 0, 100, 1, 2, 100)
MyMIDI.close()
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].type, 'NoteOn')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].time, 0)
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].type, 'NoteOff')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].time, 128)
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[2].type, 'NoteOn')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[2].time, 0)
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[3].type, 'NoteOff')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[3].time, 256)
def testTimeShift(self):
# With one track
MyMIDI = MIDIFile(1)
MyMIDI.addNote(0, 0, 100, 5, 1, 100)
MyMIDI.close()
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].type, 'NoteOn')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].time, 0)
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].type, 'NoteOff')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].time, 128)
# With two tracks
MyMIDI = MIDIFile(2)
MyMIDI.addNote(0, 0, 100, 5, 1, 100)
MyMIDI.addNote(1, 0, 100, 6, 1, 100)
MyMIDI.close()
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].type, 'NoteOn')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].time, 0)
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].type, 'NoteOff')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].time, 128)
self.assertEquals(MyMIDI.tracks[1].MIDIEventList[0].type, 'NoteOn')
self.assertEquals(MyMIDI.tracks[1].MIDIEventList[0].time, 128)
self.assertEquals(MyMIDI.tracks[1].MIDIEventList[1].type, 'NoteOff')
self.assertEquals(MyMIDI.tracks[1].MIDIEventList[1].time, 128)
# Negative Time
MyMIDI = MIDIFile(1)
MyMIDI.addNote(0, 0, 100, -5, 1, 100)
MyMIDI.close()
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].type, 'NoteOn')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].time, 0)
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].type, 'NoteOff')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].time, 128)
# Negative time, two tracks
MyMIDI = MIDIFile(2)
MyMIDI.addNote(0, 0, 100, -1, 1, 100)
MyMIDI.addNote(1, 0, 100, 0, 1, 100)
MyMIDI.close()
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].type, 'NoteOn')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].time, 0)
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].type, 'NoteOff')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].time, 128)
self.assertEquals(MyMIDI.tracks[1].MIDIEventList[0].type, 'NoteOn')
self.assertEquals(MyMIDI.tracks[1].MIDIEventList[0].time, 128)
self.assertEquals(MyMIDI.tracks[1].MIDIEventList[1].type, 'NoteOff')
self.assertEquals(MyMIDI.tracks[1].MIDIEventList[1].time, 128)
def testTimeShift(self):
# With one track
MyMIDI = MIDIFile(1)
MyMIDI.addNote(0, 0, 100, 5, 1, 100)
MyMIDI.close()
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].type, 'NoteOn')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].time, 0)
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].type, 'NoteOff')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].time, 128)
# With two tracks
MyMIDI = MIDIFile(2)
MyMIDI.addNote(0, 0, 100, 5, 1, 100)
MyMIDI.addNote(1, 0, 100, 6, 1, 100)
MyMIDI.close()
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].type, 'NoteOn')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].time, 0)
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].type, 'NoteOff')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].time, 128)
self.assertEquals(MyMIDI.tracks[1].MIDIEventList[0].type, 'NoteOn')
self.assertEquals(MyMIDI.tracks[1].MIDIEventList[0].time, 128)
self.assertEquals(MyMIDI.tracks[1].MIDIEventList[1].type, 'NoteOff')
self.assertEquals(MyMIDI.tracks[1].MIDIEventList[1].time, 128)
# Negative Time
MyMIDI = MIDIFile(1)
MyMIDI.addNote(0, 0, 100, -5, 1, 100)
MyMIDI.close()
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].type, 'NoteOn')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].time, 0)
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].type, 'NoteOff')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].time, 128)
# Negative time, two tracks
MyMIDI = MIDIFile(2)
MyMIDI.addNote(0, 0, 100, -1, 1, 100)
MyMIDI.addNote(1, 0, 100, 0, 1, 100)
MyMIDI.close()
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].type, 'NoteOn')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[0].time, 0)
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].type, 'NoteOff')
self.assertEquals(MyMIDI.tracks[0].MIDIEventList[1].time, 128)
self.assertEquals(MyMIDI.tracks[1].MIDIEventList[0].type, 'NoteOn')
self.assertEquals(MyMIDI.tracks[1].MIDIEventList[0].time, 128)
self.assertEquals(MyMIDI.tracks[1].MIDIEventList[1].type, 'NoteOff')
self.assertEquals(MyMIDI.tracks[1].MIDIEventList[1].time, 128)
from pyknon.MidiFile import MIDIFile, MIDIHeader, MIDITrack, writeVarLength, frequencyTransform, returnFrequency
tx = 11
m = MIDIFile(tx)
length = 256
# all notes off
for t in range(128):
m.addNote(0, 0, t, 0, 0, 0)
prev = [-1] * tx
def writeNote(a, b, c, d, e, f, g=False):
if d >= length:
return
if g or c != prev[a]:
m.addNote(a, b, c, d, e, f)
else:
m.tracks[a].eventList[-1].duration += e
prev[a] = c
def popcnt(x):
return bin(x).count('1')
def toscale(scale, note): # todo: totally broken
poct = popcnt(scale)
n = note % (poct + 1)
c = 0
o = 0
for i in format(scale, '012b'):
