The musical interfaces can sometimes be extremely curious. That’s the case of  the chess sequencer.

The Chess Sequencer is a step matrix sequencer made from a chess board, where placing the pieces make music. The sequencer is connected to software synths on my Mac trough USB and a Processing patch to convert the serial data to internal midi.

The core here is an Arduino Mega. I was planing to use the Duemilanove but laziness caught me. The Mega has tons of IOs so I do not have to make a lot of multiplexing saving me hours of work.

Check here the full instructions to build your own!