An instrument designed by Benjamin Franklin. It has glass bowls nestled sideways on a spindle that is rotated with a pedal. The sound is produced by rubbing wetted fingers on the turning bowls, which are all tuned to different pitches.
An instrument designed by Benjamin Franklin. It has glass bowls nestled sideways on a spindle that is rotated with a pedal. The sound is produced by rubbing wetted fingers on the turning bowls, which are all tuned to different pitches.