Hello. I was wondering whether octaves should be played inside the keyboard or outside. When I try playing inside the keys, either my thumb or pinky sometimes presses on the key right beside the octave keys.
But I do think that in the Chopin octave etude I'd use the 5th as much as possible (yet to learn this one). I have smallish hands for a male but can squeeze 10 notes.I think it is worth doing exercises to widen the palm and get one or two extra millimeters out of it - at least! PW