Interface MidiEvents

interface MidiEvents {
    controller(channel, controllerType, value): void;
    noteOff(channel, midiNote, velocity): void;
    noteOn(channel, midiNote, velocity): void;
    programChange(channel, value): void;
    setTempo(microsecondsPerBeat): void;
    timeSignature(numerator, denominator, metronome, thirtyseconds): void;
}