Weird noises emerge from a Frankenstein cassette-tape keyboard
 

Of course everyone knows what a Mellotron is (no, everyone doesn't), but allow us to briefly explain anyway. The Mellotron is a keyboard hooked up to analog tape -- press a key and the instrument plays a corresponding section of sound on the tape....

http://www.engadget.com/2015/08/21/m...cid%3Drss_semi