message: exporting ScaledEnvelope
diff: @@ -10,6 +10,7 @@ export * from "./channel/Volume";
  export * from "./channel/Panner";
  export * from "./envelope/AmplitudeEnvelope";
  export * from "./envelope/Envelope";
  +export * from "./envelope/ScaledEnvelope";
  export * from "./filter/EQ3";
  export * from "./filter/Filter";
  export * from "./dynamics/Compressor";
  