def midi_to_event(time: int, msg: Any, voice: Voice):
if msg.type == 'control_change':
return ControlChangeEvent(time, voice, msg.control, msg.value)
elif msg.type == 'program_change':
pass
# return ProgramChangeEvent( time, voice, msg.program )
elif msg.type == 'note_on':
note = Note().with_pitch(msg.note)
return NoteOnEvent(timestamp=time,
pitch_class=note.pitch_class,
octave=note.octave,
accidental=note.accidental,
velocity=msg.velocity,
voice=voice)
elif msg.type == 'note_off':
note = Note().with_pitch(msg.note)
return NoteOffEvent(timestamp=time,
pitch_class=note.pitch_class,
octave=note.octave,
accidental=note.accidental,
voice=voice)
return None
def on_message ( self, virtual_keyboard : KeyboardLibrary, msg : mido.Message ):
if msg.type == 'note_on':
note = Note().with_pitch( msg.note )
virtual_keyboard.on_press( PianoKey( note ) )
elif msg.type == 'note_off':
note = Note().with_pitch( msg.note )
virtual_keyboard.on_release( PianoKey( note ) )
virtual_keyboard.on_press( MidiEvent( msg ) )
def note_to_ast(self, context: Context, voice: Voice,
event: NoteEvent) -> ast.NoteNode:
return ast.NoteNode(
Note(pitch_class=event.pitch_class,
octave=event.octave - voice.octave,
accidental=event.accidental,
value=voice.get_relative_value(event.value)))
def note(self, tree):
position = self._get_position(tree)
accidental, (pitch_class, octave) = tree.children[0]
value = Fraction(1)
if len(tree.children) == 2:
value = tree.children[1]
note = Note(pitch_class=pitch_class,
octave=octave,
value=value,
accidental=accidental)
return NoteNode(note, position)
def chord_shortcut(self, tree):
position = self._get_position(tree)
value = Fraction(1)
if len(tree.children) == 3:
value = tree.children[2]
accidental, (pitch_class, octave) = tree.children[0]
chord = tree.children[1]
note = Note(pitch_class=pitch_class,
octave=octave,
value=value,
accidental=accidental)
return ChordNode(Chord.from_abbreviature(note, chord, value),
position=position)
def chord_manual(self, tree):
position = self._get_position(tree)
value = Fraction(1)
x = len(tree.children)
if tree.children and isnumber(tree.children[-1]):
value = tree.children[-1]
x = -1
notes: List[Note] = []
for accidental, (pitch_class, octave) in tree.children[:x]:
notes.append(
Note(pitch_class=pitch_class,
octave=octave,
value=value,
accidental=accidental))
return ChordNode(Chord(notes, None, value), position=position)
def deserialize(data: str, parameters: Dict[str, Any]) -> 'PianoKey':
return PianoKey(Note.from_pitch(int(data)))
def NODE_PITCH_RAW(self, token):
return Note.parse_pitch_octave(str(token))