Quote #1
"Ideas in the book such as "thumb over" and his discussions on flat fingers are not founded on any experience as a pianist, but on odd hypothetical theories that don't work. No pianists uses "thumb over."
I will play devils advocate here, there are passages of music where thumb over works much better than under. When we play things very fast or have fast hand movements thumb over is most more efficient as it does not change the size of your hand, note that changes to your 1st or 5th will cause expansion and contraction of your hand. Thumb over causes the hand to maintain its same expaned size and when playing fast runs allows us to produce the same result with less effort compared to thumb under. Look at Debussy's Images Reflects dans Leau for instance when the RH starts running up and down the octaves a whole tone pattern vs LH melody after the cadenza. Anyone who approaches the RH with a thumb under motion will play with unnecessary tension. It seems very strange that this person said you never use thumb over and it is a hypothetical theory, to me this highlights the limited piano repertoire experience they have and/or a limited technique.
You are clearly correct.
I think the problem stems from people being taught piano from a young age solely on the basis of connective fingering. It is hard to conceptualize playing the piano with muscles that do not come into direct contact with the keys.
But the whole idea of the awkwardly named "thumb over" seems to me to be a description of playing with larger muscles, and treating the hand as a
unit, rather than a set of individual parts. Some repertoire demands that we do that; often it is post-Lisztian repertoire, but even in Beethoven this muscular demand was coming forward.
It is hard for people, who have always played everything with connective fingering, to understand the idea of moving the hand, or the forearm, or the arm, as an entire unit, and to relinquish, for even a split second, contact with the keyboard.
Perhaps Chang (I never read the book) believed in this point too strongly, and believed everything should be played with upper musculature, and so insisted that that was the only, proficient way too play. That is rather an instance of over-heated rhetoric, than a bad idea. The idea itself is sound; the application was too zealous.
This is a good example of where an axiom in the book is stated but no detailed routine to understand it has been properly discussed and thus those who are still trying to learn about technique end up getting lost. Talking about the thumb one could devote an entire chapter to, the thumb is the most complicated finger in the entire hand, all serious pianists will admit this fact to you. The thumb is such a difficult tool to use correctly that to restrict it to move in a particular way will hinder your technical progress much more so than doing the same with any other finger. I find it ludicrious to say that the thumb ALWAYS has to come from above but at the same time it is just as crazy to alway do thumb underneath! Both have their application and anyone with a decent amount of piano repertoire knowledge will know immediately examples where both are used and are the best effective in each case.
I think part of the confusion of this topic arises from a description of it based on side-effects, not the actual process of what is happening. The reason that sometimes the thumb is not bent under the hand is that the entire hand has to move in order to reach a new position or location on the keyboard.
Look at a lot of passages in Prokofiev, for instance, where he wrote in the fingering; very fast scales often use sequences of 1-2-3-4-5. There can really be no doubt how he played these, as individual gestures, moving the hand rapidly along the keyboard. He certainly didn't cross the thumb under his pinky.
There are plenty of passages like that in Liszt too, just to take one from the top of my head, the
tutta forza arpeggios near the end of the Mephisto Waltz. They can't be played by crossing the thumb under the pinky, they have to be played as a series individual gestures utilizing the entire hand as one unit. The difficulty of course is making them sound like one big arpeggio, when they are made up of so many small impulses.
Back to my original point: the confusion is, I think, in the description. What you are really doing is not moving the
thumb over the keyboard, you are moving the entire hand, using the upper musculature. It just so happens, that the
result or the
side-effect is: the thumb doesn't get crossed under.
He focussed unnecessarily on the action of the thumb, when the thumb is not the primary moving force. Really what is happening is we are using shoulders, upper arms, elbows, forearms, and wrists to move around, rather than connecting by fingering alone.
Walter Ramsey