message: hiding unused variables
diff: @@ -219,7 +219,8 @@ export class FrequencyClass<Type extends number = Hertz> extends TimeClass<Type,
  ///////////////////////////////////////////////////////////////////////////
  /**
  - * Note to scale index
  + * Note to scale index.
  + * @hidden
  */
  const noteToScaleIndex = {
  // tslint:disable-next-line
  @@ -234,6 +235,7 @@ const noteToScaleIndex = {
  /**
  * scale index to note (sharps)
  + * @hidden
  */
  const scaleIndexToNote = ["C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B"];
  