I've just released a new kit called Groovesizer RED (RED | Groovesizer) which is a lot closer to the original instrument described in this thread. The most notable differences are that the RED also has a MIDI input port in addition to the output so it can send and receive MIDI sync, and that there are now 16 LEDs, one for each step, as opposed to the original's 8. I've also implemented a host of new features, including a Live Mode, and note entry quantized to one of 12 preset or 4 user defined scales.
