kapustinsane Hello and welcome to Piano Tell 🙂
Hopefully someone else can offer some Kapustin-specific advice (I don’t listen to Kapustin very much and those pieces are well beyond my playing level) but I have a thought a lot about memorizing and decided many years ago (probably 20 years ago now) that I would not make memorizing a priority but instead would prioritize reading/playing from the score, because I found it helped me maintain pieces longer and score-reading helped me more easily maintain a repertoire with more pieces in it. And it also removed one element of perfomance anxiety, which is the fear of a memory slip. When I started reading from an iPad, then I didn’t even have to worry much about page turns either.
But again, the music I play is no where near as difficult as Kapustin!
So first, I would ask, why do you want to memorize? Will it help you play those fast pieces faster or give you more tempo control? Or do you hope to have more control over the elements of musicality by memorizing? If so, maybe @twocats can join this thread becuase I believe she can comment about these things? 🙂. Anyway, if you haven’t already, articulating your specific goals for memorizing might help, because maybe it will clarify what needs more attention.
Another question is, are you comfortable memorizing other composers? And if so, what’s different about them? Is it just that other pieces you memorize are easier? Or as you mentioned, is just that there some systematicity that makes memorizing easier, and that’s missing in Kapustin?
Lastly, what have you tried so far in terms of approaches to memorizing? For example, here is one idea (apologies in advance if you’ve already tried this). First, add your own “rehearsal marks” to each piece. These marks can be A, B etc., but where a section/theme repeats with subtle variation, be sure to use labels like A1, A2, B2 etc. so that the marks also help you highlight those musical connections. (In other words, just going through adding rehearsal marks is itself a kind of analyzing the score)
Next, on a sheet of notebook paper, write down those labels, and while looking through the music, give each label, or each rehearsal mark an additional label that is a word, not letter. These word-labels could either be a musical description, something about the notes, key or other musical feature, or a more impressionistic description (e.g., stormy section, day break, twinkle lights) or maybe one that even tells a story, even if that feels silly or cheesy. Example: clouds roll in, thunder rumbles in the distance, rain starts, sky clears…
Now, away from the piano, look through those descriptive/story labels, and try to play the piece in your head. You can refer back to the score sometimes as you go. Then go back to the piano, and instead of having the score on the music stand, put your notebook there and try to play from those descriptive/story labels. Peek at the score to give you some hints here there, but put it a way again. Have as a goal to play one or two sections of decisive labels, and then expand slowly from there.
Let me know if you think this idea might help, or if you think it wouldn’t apply to Kapustin, or if you’ve already tried something like it!