device for the automatic baßbegleitung in an electronic musical instrument

摘要

A keyboard musical instrument is provided having a keyboard for playing solo or lead. Automatic switching also is provided for producing predetermined percussive-type rhythm patterns and sounds, and is operable with a plurality of chord buttons to play predetermined chords and also a related bass note. The chords and bass note may be alternated, the bass note being the root of the chord or its fifth preferably alternating.