Acknowledgements
MIDI Keyboard, Scope and Spectrogram widgets: Nexus UI
ADSR Envelope widget: Nigel Redmon, Earlevel Engineering
Beta Testing: Martin Russ (and others)
Polyblep oscillator: Émilie Gillet
VOSIM algorithm: Rob Hordijk (after Werner Kaegi and Stan Tempelaars)
Agnesi Curve: Maria Gaetana Agnesi
Wavetable code: Alex Niger
Wavetable morphing algorithm: Robert Bristow-Johnson