Lately I’ve been having a real problem with broken octaves. I’ve noticed this after playing rondo alla turca and gewitter (thunderstorm), an AMEB grade 4 exam piece from the series 16 book. Whenever I try to play them at a relatively fast tempo, my wrist and forearm always tenses up. I’ve tried putting more emphasis on my wrist, using only my fingers, and a bit of both, and have tried relaxing my wrist as much as I can, but to no avail. My left hand doesn’t have this problem, I can play broken octaves perfectly fine. I don’t know how to fix this problem in my technique. Any advice would be appreciated.