thanks Hugh for the tip about the palm.
Nedro, If I'm right, what Hugh means is that you don't actually place the palm up against the box, but use it to give some back-up force to the whole right hand in general, including the thumb. correct me if I'm wrong Hugh.
both you guys have cool websites too!

Here's a freebie from Ganey Arsement. I haven't seen Marc Savoy's lessons, so this is what I've used for reference. See link #2.

Ganey is on the forum, and can play the buttons off an accordion.