10 years ago by
A Pianist
When you say rotate, I think you refer to horizontal swiveling. If you could replace that kind of "rotation" with rotation along the axis of your forearm, this would help.
I see no reason why your unique thumbs should slow you down (of course on closer inspection I might have to change my mind); you just have to figure out how your particular configuration could work best on the keyboard. As Moshe Feldenkrais said, a flexible brain can overcome virtually any physical disability.
Stretch your arm out and rotate your hand as if you were opening a door. Try to discover how this movement can get your thumb to its note - you don't physically join the keys, but you create the illusion of a smooth legato with this "rotation-flip" kind of a move.
See another thread that I just answered about passing the thumb under, I forget exactly what it's called...
Best wishes,
AFF