message: fix: load base64 encoded sounds when baseUrl is not empty
  Fixes
diff: @@ -147,6 +147,10 @@ export class ToneAudioBuffers extends Tone {
  onerror: (e: Error) => void = noOp,
  ): this {
  if (isString(url)) {
  + // don't include the baseUrl if the url is a base64 encoded sound
  + if (this.baseUrl && url.trim().substring(0, 11).toLowerCase() === "data:audio/") {
  + this.baseUrl = "";
  + }
  this._buffers.set(name.toString(), new ToneAudioBuffer(this.baseUrl + url, callback, onerror));
  } else {
  this._buffers.set(name.toString(), new ToneAudioBuffer(url, callback, onerror));
  