The critter-guitari Pocket Piano is a great shield for Arduino, and it has the advantage that it gives you a lot of hardware to play with as well .. http://www

The critter-guitari Pocket Piano is a great shield for Arduino, and it has the advantage that it gives you a lot of hardware to play with as well .. http://www.critterandguitari.com/home/store/arduino-piano.php http://www.critterandguitari.com/home/store/arduino-piano.ph... I built one for fun, and ended up using it in jam sessions as a serious synth. Great!