1983 – The Korg SAS-20 was Korg’s first arranger keyboard. A built-in computer analyzed the melody played on the keyboard, and generated a complex accompaniment. This was the world’s first auto-accompaniment function of this kind added to a keyboard. Also, a more traditional chord recognition system was included.

This was my First Arranger style KB after 20 years of
Digital Piano, Hammond B3, Rhodes, Synths, etc,..