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"Three osc, three adsr, Step sequencer with last step and lfo control, two separate multi mode filters, osc sync, ring mod, fm, am, spring loaded pitch ribbon with interval adjustment, external input. The sound is pure early yamaha, similar to cs-80. warm musical osc sounds, the filters are very powerful and kindof squelchy, but not abrasive. The best part about this synth is the switch patching system which gets you into modular territoy you can simultaneouly layer a sequence playing one osc, and play a lead sound on the keyboard, you can have one sequenced osc modulating another osc triggered by the keyboard ect."