The QB is a quitar on steroids–The QB is the piano on steroids–The QB is the bass (concert or electric) in heaven. Every harmonic or melodic fingering pattern you play is now possible 1-4 octaves higher. Now you can play melody and harmony.
Think about it–especially you improvisors. Then again, what’s that old homely-“You can lead a horse to water, but. . . .” Brothers, see the light.