There is new software available for the Cynthcart. The features are: 3 Note Polyphony. Works with the C64 piano keyboard overlay. No latency. Adjustable vibrato. Portamento effect. Can change patches and settings while playing. Support for 2nd SID. Filter, pulse width, vibrato and pitch via paddle controllers. Whammy. Control of attack, release and many other sound parameters. Tuning adjustment. Psychedelic rave color patterns. On-screen help. SID hex editor.