SunVox is a fast and powerful music sequencer with modular synthesizers. Available for following OS: Windows, Windows Mobile, Linux, Mac OS X, PalmOS, iPhone. Built-in synthesizers: FM; Generator;

Sampler (supported formats: WAV, XI); SpectraVoice (FFT-based synth for analog-like pads); Kicker; Stereo Delay; Distortion; Echo; Filter; Vocal Filter; Flanger; LFO; Loop; Reverb.