Thanks for the advice. I was playing this without a teacher. Now I have a teacher, who is trying to teach me arm weight and wrist movement, which I have great trouble with. Lifting the fingers have caused much strain in my hands and arms, so I am asked to minimise it at the moment. I have weak technique, so have to build it up bit by bit :P

そですよ。彼はサムの息子です！

I am going to play A5, B1 and C1.

I think this is quite a challenging piece. How tough are Trinity pieces? I only did Trinity up to Grade 2, so I can't really judge. Can we see a demo? Sometimes I feel that the notes may not be tough, but dynamics and expression will count for the bulk of the marks. That is why Horowitz can play seemingly simple pieces as teasers during concerts, and still wow the audience.

Thanks for listening. I sent you a YouTube PM to tell you how I played.