10 years ago by
A Pianist
Wow, what great questions! I will address them one at a time.
What muscles, to your mind then, DO flex the fingers (the main movement of depressing a key)? The deep and superficial flexors flex the distal and medial phalanges; my whole thrust is to reduce the stress on these muscles that move parts of the digits that are more suited to fine control, and to restore exuberant flexion of the proximal phalange: flexion of the metacarpal-phalangeal joint. This action in my experience consolidates and strengthens the natural arch of the hand, and it also is a main factor in creating big, healthy, resonant, juicy tone. As far as I understand it, the lumbricals and interosseous are the only muscles involved in flexing the metacarpal-phalangeal joint, but please correct me if I'm wrong.
I personally do not believe that increasing the activity of these muscles in any way goes against nature. I remember carrying a box that had an awkward carrying handle forcing me to use the medial and distal parts of my fingers more than the proximal part, and in 10 minutes my forearm was hurting! Nature says USE the proximal part of your finger to grip, it is much better at holding onto things powerfully than the more distant parts of the finger.
Michael Furstner says that because the lumbrical actually attaches to the deep flexor, we must reduce the use of the lumbrical and increase the use of the interosseous in proximal phalange flexion. This is his "going against nature." Quite frankly, I have no idea how to do what he says. I don't see how one could isolate the work of one of those muscles from the other, and he does not offer any way of doing so. I myself couldn't care less if the lumbrical, interosseous or both do the job of flexing the metacarpal phalangeal joint, I just want to see it happen!
Please do enlighten me if I've missed some other muscles here - maybe my anatomy books are out of date!
No comment, because I have no way of verifying if this is true or not.
See paragraph 3 above...
I do recommend increasing the action of whatever muscles flex the metacarpal-phalangeal joint, but as I said above, I do not at all believe that this is going against nature. I believe it is restoring natural function to the hand.
HOWEVER, there is another instance where indeed I DO feel it is useful to "go against nature." Lay your hand on the desk top. If it is relaxed, it will lie comfortably with the knuckles sloping down slightly from the 2nd to 5th fingers. This slope happens because the thumb is stuck under there. Its bulk prevents the hand from lying symmetrically. If your thumb were not there, the two ends of the arch from 2nd to 5th would be equidistant from the desktop, yes? This is the hand position that harpsichordists used, and I believe it is the one most useful to pianists as well.
The 'natural,'s sloped hand position is not the most useful for piano playing. It's the shape of the "lazy 5th." The hand works best when the thumb is not an equal part of the hand arch but an outrigger pointing to the inside, kind of like a flying buttress supporting the cathedral ceiling arch but not actually a part of that arch. The slight movement of the arm to stand the 5th finger up and bring its knuckle to horizontal equality with the 2nd is, to my mind, a necessary way of "going against nature," that is to say, against the naturally relaxed position of the hand. But this does not increase risk of injury: it actually reduces ulnar deviation and thus makes you less prone to hurting yourself...
Both Thomas Mark and Seymour Fink make a big deal of this - at first I disagreed with them but now have come around to seeing just how right they are...
Thanks for wonderfully provocative and stimulating questions!
AFF