def build_note_off(channel,note,velocity,time):
m = Message("note_off")
m.channel = channel
m.note = note
m.velocity = velocity
m.time = time
return m
def raw_to_msg(raw):
if raw[0] == 144:
msg = Message.from_bytes(raw[:3])
else:
msg = Message('sysex', data=[])
msg.time = raw[3] / 1000
return msg
def appendNote(self, note, velocity, time, seconds = False):
msg = Message("note_on")
msg.note = note
msg.velocity = velocity
## time (s) * (ticks / beat) * (beats / min) * (1min / 60s)
msg.time = time if seconds == False else int(round(time / self.seconds))
self.appendMsg(msg)
def send (self, msg: mido.Message):
self.input.send(msg)
channel: RuntimeChannelData = self.runtime_data.channel_data(msg.channel)
data: ChannelData = self.cube.reg().data(self).channel_data(msg.channel)
index = 0
curr_bar = self.bar_counter % data.bars
msg.time = time.clock_gettime_ns(time.CLOCK_BOOTTIME) - channel.last_start
#Find postition
for i in range(len(channel.messages)):
if channel.messages[len(channel.messages) - i - 1].time < msg.time:
index = len(channel.messages) - i
#Insert
channel.messages.insert(index, msg)
def shiftAndScale(inputFileName, outputFileName, pitchShift, timeScale):
orig = MidiFile(inputFileName)
mid = MidiFile()
for tr in orig.tracks:
track = MidiTrack()
mid.tracks.append(track)
#<meta message track_name name='Grand Piano' time=0>
# time=0 could be replaced be time=timeShift if necessary
msg = Message('note_on', note=0, velocity=0, time=0)
track.append(msg)
for msg in tr:
if msg.type == 'note_on':
msg.time = round(msg.time * timeScale)
msg.note = msg.note + pitchShift
track.append(msg)
mid.save(outputFileName)
def encoding_to_message(encoding, decodings, defaults=master_defaults):
message = decodings[encoding]
if message == "START_TRACK":
#header defaults
time_signature = MetaMessage("time_signature")
time_signature.numerator = defaults["time_signature.numerator"]
time_signature.denominator = defaults["time_signature.denominator"]
time_signature.clocks_per_click = defaults[
"time_signature.clocks_per_click"]
time_signature.notated_32nd_notes_per_beat = defaults[
"time_signature.notated_32nd_notes_per_beat"]
key_signature = MetaMessage("key_signature")
key_signature.key = defaults["key_signature.key"]
set_tempo = MetaMessage("set_tempo")
set_tempo.tempo = defaults["set_tempo.tempo"]
return [time_signature, key_signature, set_tempo]
if message == "END_TRACK":
return [MetaMessage('end_of_track')]
if message == "WAIT_A_BEAT":
return [message]
if message.startswith("note"):
parts = message.split("-")
res = Message(parts[0])
res.note = int(parts[1])
res.time = int(parts[2])
# defaults
res.channel = defaults["note.channel"]
res.velocity = defaults["note.velocity"]
return [res]
return []
