Marc â€œNostromoâ€ Resibois wrote up a nice piece on Arduino for portable sound synthesis over @ CDM, referencing the Arduino Pocket Piano kit.
My first hands-on with hardware was when I started fiddling with the Arduino piano. You might argue that once itâ€™s built, itâ€™s still software platform, but I really enjoy working on this bit of kit. The interaction is even more straightforward than game consoles: press a button, turn a knob, and get sound. Although it might seem limited compared to software synths, it also has dimensions that a lot of virtual instruments lack. Iâ€™ll call these qualities depth and exclusivity.