livecodingspace-app/public/defaults/worlds/tone/generate.js

this.clickEventMethod = function() {
   this.synth.triggerAttackRelease(['C4'], ['8n'], 0.3);
}

this.doButtonTriggerdownAction = function(buttonID){

    let transportNode = this.find('//' + 'globalTransport')[0];



    if(this.playButton.displayName == "playButton"){
        //this.transportLine.playing
        this.globalBeat = this.globalBeat? false : true;

        if(this.globalBeat){
            this.playButton.baseColor = 'red';
            this.playButton.textNode.value = 'Stop'

            if(!transportNode.playing)
                transportNode.play()
           

        } else {
            this.playButton.baseColor = 'green';
            this.playButton.textNode.value = 'Play'
        }

    }

}

this.initialize = function(){
    this.playButton.init();
}

this.onGlobalBeat = function (obj) {
    //dispatch the beat example send OSC
    let transportNode = this.find('//' + obj.name)[0];
    let rate = transportNode.animationRate; // 1 by default
    let drumSeq = this.seq;
    // [
    //     { beat: 0, msg: "C0" },
    //     { beat: 15, msg: "C0" }];
    drumSeq.forEach(el => {
        if (el.beat / rate == obj.beat) {
            this.synth.triggerAttackRelease([el.msg], ['16n']);
        }
    })

}