Hello! (First of all sorry for mistakes, English is not my language.) I'm amateur piano player only, BUT! .... it is maby strange or totally unprofessional, but I love to play bass guitar sequences at this instrument. Since I was child the first thing that I enjoyed in all kind of melodies, was the bass. I started to learn piano, not bass, but every melody- till today I play untypical (complicated sequences- especially from live music or from a catchy title melody sound very convincing! ) and only some time ago I started to be interested in bass not only "in practice" , but theoretically too. For me, bass was just stunning in the late 70's. Every simple song, or even a stupid theme sounded then incredibly good- because of the bass. WHAT WAS THAT? Was it GS-500 connected to Roland GR-500?? Is it possible to buy this classic set somewhere, or is it to see only in a museum...? I'm 25 now and I hope it's not too late for starting to learn playing bass. I'd like to play in the classic way, like in the late 70's. But how to do this? Is there some special set to buy? It is so hard to find in the internet any information about the technical aspects of the music from that periode...... Thanks for every answer ! !