I've seen this expression, and me... I'm all for it. Consider: Peter Hook's bass sounds like a guitar. He's playing guitar on the bass. His bass is really not BASS (low tones) He's good but he strays from the low tones too much for my taste. That's why I thought I couldn't hear him on New Order recordings...the guitar parts were him. My love for the bass has to do with those low tones. That's me. I'm not into more than 5 strings...those 8-string necks are way too wide. Plus I like the bass as was designed: four strings. A fifth is OK (it's lower). Sixth...go for it if you wanna but not me. Do you play BASS ON THE BASS or do you play GUITAR ON THE BASS????