Rikki we used at least two keyboards, sometimes three..and a drum machine.

It was common for us to use an electric piano[rhodes], and have a synth for left hand bass[Roland SH101], and another synth for added color sounds like strings and organ[Roland Juno]..
This working together with a programmable drum machine[Roland TR 707]..

Actually it was an enjoyable time performing in the "Good Old Days"..