Simple Sequencer App
Synth + delay

	this.delay = ctx.createDelay();
this.delay.delayTime.value = 0.2;
this.feedback = ctx.createGain();
this.feedback.gain.value = 0.3;

this.vol.connect(this.delay);
this.vol.connect(ctx.destination);
this.delay.connect(this.feedback);
this.feedback.connect(this.delay);
this.feedback.connect(ctx.destination);