1963 Fender Bass VI Reissue. Here's one bad mamma-jamma. The Bass VI is a baritone guitar meant to be tuned like a guitar only 1 octave lower. But that would be the easy thing to do. So far, mine is tuned to an open Dmaj. Simultaneous chords and bass are no problem on a baritone. Another gem to keep your guitar player on good behavior.her
For reference, check out the main riff in Aerosmith's "Back In The Saddle". That's Joe Perry on a Bass VI. Pretty gnarly.