have at least two keyboards on the stand...usually three. The bottom (when I use an arranger) is an old MS-60 or an SD-5. On top of that is the Hammond Sk-1, positioned so I can play left-handed bass, when needed (70 % of the time). On my right hand is an electric piano. Sometimes, over that is a 61 key synth of some kind (usually a Roland 101.

Wish I could use the Hammond on the bottom, but when I need the auto features, they are not easily accessed when on top of a stack.

R.