Love electronic keyboards. Jose's got flying fingers!
The synthesizer first became popular in the early 1980's. The JX-3P and Yamaha DX-7 were some of the first commercial synthesizers available for keyboardists. Before then synthesizers would be used to make single sound types by using an oscillator (sound producing tone) and changing the ADSR (attack, decay, sustain and release) to create single musical notes. We digress.
Anyway, Check out Jose tearing up the keyboard.