I'm an amateur accordion player who is having difficulties with the bass side. There's no problem when I'm using close keys such as jumping from C to A. But when I need to jump to a further key such as from A to Bb, I usually press a wrong key.
Is there a common (or natural) left hand position preferred by accordionists? I mean, is there a way that accordionists position their left hand on the accordion? Do they know it just by looking at the chords in the song?
I've watched several accordionists on Youtube and couldn't figure out any specific style.
If the answer is no, what do you recommend me to improve my left hand? Do you recommend any source of exercise set?