This fancy project looks really catchy especially if you like drum, bum or what ever other boxes. This so called “Autonomous Bassline Generator” uses a pretty small AVR Attiny44/84 chip to mathematically generate melodies as seed.
To make things more interesting and less deterministic it uses a photocell that is used to modulate frequencies depending on light intensity. It is enough to cover photocell with your palm and you get some sort of “metallic” sound. Also it has a LED that according to notes and fun thing is that there is an IR send/receive module included which enables multiple bassline generators or other devices to synchronize and play at the same tempo. With a little touch up it could evolve in to great gadget rally friends around.