10 years ago by
A Pianist
Funny thing you should mention octaves, specifically LH octaves, because I just made a breakthrough with octaves a few days ago. I've always been able to play decent LH octaves (I tried Dreyschock's trick of playing Chopins etude 10/12 with LH octaves, it really went alot less horribly as I was expecting) but my RH octaves have been very poor. It felt like I was trying to smash down piano keys and my hand was always behind the music. Furthermore, my forearm seized up and the sound was absolutely horrible. I realized that there were two problems; the first problem was in the of all places. In my left hand, there was a small, but powerful motion of the upper arm coming forward, towards the piano, as supporting the forearm as it flexed down into the keys. Second, my left hand was at a better angle to the keys - it seems that I cannot get stable support from the keybed unless my fingers (in this case thumb+pinky) are approaching the key at almost 60 degrees. Watch this video, in it Vladimir Horowitz demonstrates his famous octaves: Look at his upper arm and wrist, everything works in perfect harmony.
Needless to say, none of this works if the hand structure is collapsed.