message: adding name prop
diff: @@ -30,6 +30,8 @@ import { Envelope, EnvelopeOptions } from "./Envelope";
  */
  export class AmplitudeEnvelope extends Envelope {
  + name = "AmplitudeEnvelope";
  +
  private _gainNode: Gain = new Gain({
  context: this.context,
  gain: 0,
  