Hi all, I am currently working on Beethoven's Pathétique Sonata and trying to improve the octave tremolos. The maximum interval I can reach with one hand is 9th (for example, from C to D), so it is rather straining.

I’ve been focusing on using wrist rotation and keeping the hand as relaxed as possible, but I still notice tension building up the longer I play. I’ve also been trying to use the natural weight of my hand, keeping my fifth finger more anchored to the keyboard while lifting my thumb a bit higher to help reduce tension. I’m wondering if there’s something I might be missing in my technique.

Do you have any tips for improving octave tremolos, especially for smaller hands or suggest potential improvement based on the attached video?

Thanks!