DIN

din is a musical instrument and audio synthesizer. It allows one to use Bezier curves to draw and sculpt waveforms, create gating and modulation patterns and create delay feedback and volume patterns. It's possible to create and edit an unlimited number of drones, sculpt their waveform and visually modulate them.

din uses JACK to output audio, it supports MIDI, OSC and an IRC bot for input. din can be extended and customised with Tcl scripts too.