​

​

if (navigator.requestMIDIAccess) {

    console.log('This browser supports WebMIDI!');

} else {

    console.log('WebMIDI is not supported in this browser.');

}

​

navigator.requestMIDIAccess()

    .then(onMIDISuccess, onMIDIFailure);

​

function onMIDISuccess(midiAccess) {

    console.log(midiAccess);

​

    var inputs = midiAccess.inputs;

    var outputs = midiAccess.outputs;

}

​

function onMIDIFailure() {

    console.log('Could not access your MIDI devices.');

}

​

function onMIDISuccess(midiAccess) {

    for (var input of midiAccess.inputs.values()) {

        input.onmidimessage = getMIDIMessage;

      console.log(input);

    }

}

​

function getMIDIMessage(midiMessage) {

  console.log(midiAccess);

  value = midiMessage.data[2];

  channel = midiMessage.data[1];

  on = midiMessage.data[0];

​

}