I started out with a B3 and a drummer in the 60's. The drummer kept getting drunk or not showing up, so I got a Kreuger bass, an Echoplex, and Rythm Ace. That was fine for awhile, but a pain to move around. I left my rig at a restaurant I played six nights at. In the early eighties, I got a Roland E-70 ? and a D50. This was more like it, and the start of my arranger path. The reasons are the same as above. I didn't look back either. I,also, had a Yamaha with a lid on it,(PSR6000?) similar to the KN7000 I have. It was no comparison to todays boards, but good for it's day.