+ NodeDictionary {
  makeBufferProcessingNdef {
	| name, buf, quant = 1.0 |
	var ndef = Ndef(name);
	ndef.proxyspace.quant = quant;
	ndef[0] = SynthDef.wrap(
	  func: this[\func],
	  prependArgs: [buf]
	);

	ndef.play;
	^ndef;
  }
}