There are descriptions from the cideo, here I just copypaste it here.
Here you go, after a longgggg time, I have finally managed to release this xD The engraving is a disaster, because I used a MS3 beta feature, so that I could ignore the barlines. The drawback is that I cannot really save, as most of the times after I reopen it, the cross-bar notes are separated again.... So you could see I still have some minor errors (more than 3), mostly at the last sketch. Anyway, the work is written almost entirely in manuscript, with the last stretto section on 3rd sketch the only section that is composed on MS entirely. the first 2 sketches are completely on manuscript, with some deletion of notes due to the playability. 1st sketch is basically a preview of the whole work. It contains 3 segments both are introducing same theme and unique characteristics, with 1st and 3rd segment hinting at the following 2 sketches. This movement is named Allegro, only because it is the original tempo I set before, which turns out to be extremely difficult with the later 2 segments.... 2nd sketch is a quiet, crystal-like work with lots of fifths, except the middle section xD Named Amorioso, the tempo actually should be Amoroso, here however I follow what I have written in my manuscript. 3rd sketch is named Calmo, but the tempo here is just showing the first section of this sketch... The whole work is separated into 4 parts: Calmo - Chorale - Toccata - Stretto, with the latter 3 being veloce and sometimes struggling, kinda to do what 1st sketch cannot do lol The last Stretto section is the longest section of the work, even longer than the 1st sketch. It is a banger to me ever since when I was experimenting with the theme in 3rd sketch, and decided to make it as a finale of the whole set of sketches. It deserves its own sketch, really.... Anyway, this work is really personal: it is not classical, romantic or what. It is just me. Happy Birthday, myself 🥳 Hope you enjoy~~ (P.S. this set of sketches was written after I had heard the entirety of Sorabji's OC and SC.)
Comments/opinions are welcome.