Gijs Gieskes’ Motor Keys instrument produces some beautiful sounds. Reminiscent of the legendary Mellotron tape sampling keyboard, the project uses the popular ATMega168 chip and a modest part count. PCB image and source code is available on Gijs’ site. [via Synthtopia]

For a similar project using multiple cassette players, check out Bre and Eric’s walkman mellotron –Make a mellotron out of walkmans – Weekend Projects Podcast