Crystal is a semi-modular software synthesizer featuring both subtractive synthesis and frequency modulation (FM) synthesis.
* Over 90 parameters which may be modulated
* multi-stage envelopes with graphical editors
* extensive tempo sync of envelopes/lforates/delay times, built-in effects
* band splitter for effects processing by frequency band
* wave sequencing
* granular synthesis
* program morphing
* MIDI learn
* imports soundfonts.