Tryophyte is a monophonic touch-based synthesizer with an onboard touch-controllable bandpass filter. Each of the touch pads acts as one of three binary inputs to a frequency divider acting on the main oscillator. This allows for a playable scale consisting of an interval for each combination of the three pad inputs. 

The bandpass filter acts to shape the pulse wave oscillator and both resonance and frequency can be controlled via touch.

Manual