Kill Bill has a tune in its soundtrack by Ennio Morricone featuring a haunting and evocative whistling. This 'mini-synth' is designed solely to re-create that sound - just add reverb. This shepherd likes to whistle while he works. Features include:

* very little really
* just enough control over sound
* just enough control over play.

Whistler produces its sound by sending white noise through a resonating bandpass filters. The notes you play control the filter's cutoff freqency. A standard ADSR envelope modifies the amplitude.