keystring every strength is a weakness, and every weakness is a potential strength.
I don't know if I would go that far, but I would say that the common observation that "ear players" aren't good readers and readers can't play by ear is certainly true in my experience.
But I have never seen my inability to play by ear as enough of a liability that I was willing to devote my limited piano time to work on changing that... Or maybe it would be more accurate to say that I always felt (and still feel) that my score-reading ability is such a useful strength that my time is better spent improving my reading abilities even more, rather than trying to improve my ear or other skills that I'm really bad at (like playing from a lead sheet).
keystring If you never have to remember or know what's coming next, because the page will tell you, why would you gain that facility or even think of acquiring it?
I know you're just giving an example, but this does overstate, at least in my case, reliance on the score at the expense of understanding the structure. I know the pieces I work on, I choose them because I like them and want to play them, so of course I know what's coming...
keystring One is the details of the moment - the small sections that the pianist on YT focused on. The other is that you have to play the whole piece and pieces often have distinct sections. You have to keep track of the whole thing.
I think this is actually the same when read-playing. Just because someone is reading from the score doesn't mean they're not tracking those details.
keystring I think awareness of basic musical structure can help.
Yes, of course. I think the difference lies in how (or when) that awareness comes to be. In my case, it happens after I play the whole piece, or more often, after I've working on it for a while and am not only playing the whole piece but starting to truly get it into my fingers. IOW, I don't look through a brand new piece of music to try to learn its structure before I start in on the piece. I also am well aware that all sightreading advice says that one should be doing this š
Yes, you might memorize that "this section starts on A" - but will you still remember 6 months or a year later?
In my case, no, if I'm not playing the piece for 6 months, I won't remember that. But guess what? I don't care š Because I can read it. And for myself, I have found over the years that I can return to pieces I previously polished, and read-play them back into my fingers very quickly.
But if the piece is in D major, and the section has modulated to A major (as music often does) then you can also predict the probability of that A to help you.
I can't predict that, because I don't have the chord theory/music theory to make those kinds of observations.
My feeling is that patterns play a role for helping to memorize.
Absolutely! Also, recognizing patterns helps when reading as well. My pattern recognition just isn't based on articulated music theory concepts.
keystring Might new memorizing processes give new skills to reading music in unfamiliar styles?
Again, absolutely! And that's why we're all in this thread.
I just don't want to give the impression that I'm dissatisfied with my reading habit. It more like @twocats said, I am happy to add additional skills to my piano toolbox, I have no intention of replacing or discontinuing the tools I already have.
But for the record, I am still not eating the entire vegetable! š