To those of you who work single acts: I have a foot bass pedal, made by Carl Sempreveo in Florida and wrote up in Guitar Player Magazine some years back. It is played with the left foot and simulates the notes of a Bass Guitar on the two top strings up to the 12 fret. Root note is played with the toe and also bass runs while the 5th is played with the heel and is always directly behind the root. I do not use this any longer as I am getting too crippled up to get around so will sell very reasonably. It worked well for me along with drum machine, guitar and vocals.