Roland TR-909 sort of tuned to C-4

The Roland TR-909 Rhythm Composer is a drum machine introduced by the Roland Corporation in 1983. It succeeded the TR-808, and was the first Roland drum machine to use samples for some sounds. It was also the first Roland drum machine with MIDI functionality, allowing it to synchronize with other devices. Though it was a commercial failure, the 909 became influential in the development of electronic dance music genres such as techno, house and acid.