I may have discussed this piano work in the past, it is the third movement of Beethoven's Moonlight Sonata. Everyone knows the first movement, it is slow, and romantic, and is heard in many movies. The First Movement is, technically, easy to play. But...to express the MUSIC and EMOTIONS in it is very difficult. That is where the pianists hands do the work. You can pound a key on the piano, or caress it, and the sound is different. Most amateur pianists I have heard play it play it too fast, and it just sounds like an Etude. But this, the THIRD MOVEMENT, is a different creature. Beethoven was obviously struggling with heavy emotions when he wrote the Third Movement, and it is very expressive, what do you think? I hear anger, frustration, and a lot of challenging emotions in it.
https://youtu.be/BV7RkEL6oRcI did learn to play this at the Conservatory, and at the speed in the clip. My mind works very strange at times, and early in my life, when I played the violin, viola, cello and piano, I would get frustrated at my hands. I mean, I could play a work the way I wanted in practice, or a performance, and other times my fingers would be stumbling around or doing something I couldn't figure out. (And, I didn't drink or ingest any drugs at that time of my life.) So, to explain the problem, I decided that my hands were independent intelligent creatures stuck on the ends of my arms, and in return for me feeding, cleaning, and applying nice nail polish on them they would usually do what I wanted them to do. But, being independent creatures, they would do what they wanted to do at times, or were angry at me and were trying to frustrate me. For some reason, I called them 'Sniffers' in my mind, and when practicing, I would yell at them..."Left Sniff, land on that D...Right Sniff, you can play that faster"...and so on.
So, in this work, I decided that the Sniffers were trying to run up a hill, but would slip and tumble back down, and try and try again...but still tumble down. They would STAMP their feet with frustration, and speak to each other about the problem. The melody does shift from hand to hand, so it made sense to me. Then, after a final tumble, and they are ready to give up...they gather their resolve and run up the hill and down the other side and leap with delight.
Just the interpretation of a deranged mind...