The Fender Bass VI was a bass for guitarists. It was basically a Jazzmaster body with a 30" short-scale bass neck and six mid-weight strings tuned EADGBE one octave below a guitar, or the same as a bass. The string spacing is such that it can only be played with a pick. You can look up the rest of the details. Danelectro actually invented the Bass VI, they were always willing to try new things while Fender and Gibson were just determined to deepen the rut they were in. Rickenbacker's rut is so deep they can't even see out of it.