Analyzing the structure is a rather tedious job, but it sure pays off.
I have found this sooooo difficult. I still do, actually, but I've learned some very useful "tricks". I used to think that "play it until you know it" was the best way. Wrong. Wrrrrong, it's the worst. You get a muscle memory and unfortunately it is totally unreliable. In a nervous situation, for instance a recital when things are not quite as they use to be, you might end up with a total blackout, just as the one you described.I also one day discovered that I tried memorizing note by note ... The best thing is to analyze the piece musically and try to find the structures. If you learn that this bar consists of a G Major chord, followed by a D Major chord and then you play 1½ G Major scale down and end on D (ok, you got that), then you will not lose it that easily, even if the chords are a bit reversed. You can even try to simplify the notes in order to find a structure or a pattern. Can you, for instance, easily answer questions like "which note do you start the coda section with? What is the value of that note?" Also divide the piece in small chunks. If you get lost in chunk 23, you will still be able to be back on track in chunk 24, and so on. I find it terribly difficult to memorize HT, and whenever I do that, I'm back in muscle memory mode. So, I memorize HS nowadays, and I find that much, much easier. I also find it easier to learn as much memorization as possible BEFORE I actually try to learn how to play it. You must be able to play it mentally before you go to the piano, at least HS. Of course this does not mean you must learn to play HT without even having the score in front of you. I am known to have an excellent memory in other contexts, but this piano thing ... I could not believe how stupid I was, as I just COULD NOT learn anything by heart. But finally I had to understand that I used wrong algorithms. Analyzing the structure is a rather tedious job, but it sure pays off.
I'm sure we're all different in this respect. Ever since I started learning piano it was analysis and composition that I was really interested in. It's making my fingers play the right notes that I find a "tedious job".But I fully agree. Everything we know about cognitive psychology, neuroscience and memory tells us that memory is a function of understanding, a result of making many and deep associations between things. To sit down and try to memorise something as an end in itself is getting the whole thing backwards.Along with analysing structure, I'd suggest playing around and improvising on various aspects of the piece - the scales, chord progressions etc. Try transposing the entire piece into a few different keys and see what happens - see whether some part of it then reminds you of something else, and follow that up. See whether some of the chord progressions or bass parts are the same as well known pop or jazz ones. Whatever...I find it hard to describe all this because it's just what I've always done. And I've never had any problems memorising. Once I know a piece and can play it, I can play it from memory. (Plenty of problems with other things though!)
That and maybe the fact of trying too hard.I think a lot of people approach memory (both in music and other things) too much as a specific thing to focus on, and not enough as what it actually is: one byproduct of having spent a lot of time investigating something with passion, interest, focus, imagination and play.
Similarly, to memorise a piece of Debussy you could start by exploring all the scales and chord progressions used. This is particularly interesting in Debussy's case because they overlap so much the romantic period of chromatic but fundamentally functional harmony and major/minor system, and the modern period of modes, parallel harmony and the like. You could work out where he's in a normal major or minor key, and where he strays into modal territory. Try and work out why. Listen to other music in that mode. Improvise on it.
You may still have to make a conscious, focused effort to memorise the piece
Having said all that, I also agree with you about the stupidity of the memorising "rule" in the first place. Who cares if people play from memory? Pianists generally don't when they're playing chamber music, or an orchestral part. Does that suddenly make the music sound worse? It's just silly - the only thing that matters is what the result sounds like.
A question for you all: why must we memorize? When I played in recitals and competitions, it was expected to have the pieces memorized. What's the big damn deal about having music in front of us? Does that diminish my worth as a pianist if I can't memorize? It just seems like an unwritten "rule."
(j menz would probably know the details)...
It was Franz Liszt, the inventor of the solo piano recital, the first to play the piano at right angles to the audience, who popularized playing from memory.
Slow, Metronome practice will get the piece stuck in your fingers.
Inon Barnatan, the Israeli pianist (and a fine player I've heard several times) has solved this by performing all his chamber music from memory. He's young and brilliant, and I just don't have the time to do it. I'm envious, I guess...
Why would a pianist sacrifice the tremendous musical advantage of having the score simply to avoid the logistics of page turning?
I think it was dusseck who played right angle to the audience
That and maybe the fact of trying too hard.I think a lot of people approach memory (both in music and other things) too much as a specific thing to focus on, and not enough as what it actually is: one byproduct of having spent a lot of time investigating something with passion, interest, focus, imagination and play.If you think of most of the stuff children remember as they grow up - like what they learn of their own native language - it doesn't come from sitting in a classroom solemnly chanting times tables and the like. It comes from investigating and playing with things, and being motivated to know more about them. And even with things like times tables, historical dates etc, the focused memorisation of facts works best when it is a crystalisation of that more general investigation. Someone who has done a really interesting project about the Norman invasion of Britain may still have to consciously memorise the fact that it happened in 1066, but they'll be much more likely to be able to recall that fact and USE it, because it will be embedded in context within their memory.Similarly, to memorise a piece of Debussy you could start by exploring all the scales and chord progressions used. This is particularly interesting in Debussy's case because they overlap so much the romantic period of chromatic but fundamentally functional harmony and major/minor system, and the modern period of modes, parallel harmony and the like. You could work out where he's in a normal major or minor key, and where he strays into modal territory. Try and work out why. Listen to other music in that mode. Improvise on it.You may still have to make a conscious, focused effort to memorise the piece, but it will be more likely to work because you'll have "chunked" it more before doing so. Instead of looking at a page of demiseiquavers and trying to think one note after another, you'll be able to think of it as an arpeggio of an added-note chord (say) with an interesting modal twist at a particular point. And enjoy it.Having said all that, I also agree with you about the stupidity of the memorising "rule" in the first place. Who cares if people play from memory? Pianists generally don't when they're playing chamber music, or an orchestral part. Does that suddenly make the music sound worse? It's just silly - the only thing that matters is what the result sounds like.