Beat707 MIDI Groove Box Sequencer

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"Beat707 is an Arduino Shield (Application Platform) that adds several neat features to your musical arsenal.

You get a 32 step machine, (plus 32 double-steps for a total of 64 steps) with 16 step buttons and leds, LCD screen and navigation keys.

It's like the classic Roland TR707 but with some twists, as it actually has 64 x 1/32 or 32 x 1/64 steps.

Plus, the 2 note-step sequence feature allows you to do bass and/or synth grooves -- it's a MIDI groove-box all in one !

The unit doesn't produce any sound, it's all MIDI based, so you can use any MIDI compatible device ( or if supported by your OS - via USB)"