Electronic Sackbut

The Electronic Sackbut is an instrument designed by Hugh Le Caine in the 1940s.

The electronic sackbut had a feature which resembles what has become the modulation wheel(s) on today's synthesizers: The player used the left hand to modify the sound while the right hand was used to play the keyboard. This compares with today's synthesizers which have one or several modulation wheels to the left of the keyboard (often controlling modulation and pitch).