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 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'):