Of course I am a bad player when I can not get the melodies
clear of the bass.

Still when I have tried other instruments it does in fact
work like it should.

So I expect that it is not *all* my badness but also at least partly the instrument. Perhaps wholly. I can play melody and one bass-button (preferably accord) but not melody + 2 bassbuttons.

But the real question is that if I should happen find a Piano-accordeon then I'd like to know if all I have learned is of no use for me, or if I fairly easily can get to the present standard of playing with the potential new instrument.

Two Button-accordeons I expext to be too confusing for a substandard player like me.

Anyways the discussion has given some useful answers so....