guit-box wrote: ↑
Fri Dec 21, 2018 9:29 pm
One word: supination (rotating the forearm so the pinky finger is closer to the soundboard).
Isn't that going to "catch" the string a bit more under the nail? Isn't that going to, instead of having the string be pressed down, then releasing and vibrating perpendicular to the soundboard (the ideal that's supposed to generate the fullest tone), instead have the string get pulled diagonally upward a bit, plucked a bit, and changing the initial impulse for the vibrational plane of the string? Though I guess that depends a lot on nail shape (and I have bad, hooked nails).
I'm not even saying any of that would be bad. Because I'm quite suspicious that what many people claim happens to the string upon exit from the nail, and what is supposedly best/necessary for good tone, is often not what is actually being done. Just look how laterally the string is displaced by thumb strokes in many videos (interestingly, Interlochen has an instructional YouTube video for thumb free stroke that shows training to get a more perpendicular displacement).
Look how badly everyone misunderstood MCP/PIP/DIP motion and OJM. And I thought a few of the final conclusions were obvious just from analyzing my own hand before ever visiting this forum. Yet many teachers and world-class performers thought these mechanics were not happening, and would be a severe handicap to good playing (but they're not).
I feel like our understanding would benefit so much if we had high-speed video of players' fingertips, showing exactly the relationship of nail and string just before, at, and just after exit/release. Showing where the string is displaced to, and how, and how it releases from the nail.
It wouldn't need to be world-class performers. Any good teacher, any professional (even if not world class), or even a student who's trained for a while under a good teacher, would illustrate something interesting to talk about if we had high-speed video of their release.
And heck, even the stock camera app on my Samsung Galaxy S9 phone will do short bits of super slow-mo (unfortunately with no sound). Here, see my rest stroke video example below. You can even watch the string vibrate before my index damps it. Except I'm not an experienced nor well-trained enough player for videos of me to be of any value. And free stroke would be more interesting (but was impossible to do for this video). Also video of thumb free stroke and rest stroke. Maybe tweak the angle to make the string displacement more clear. And have it longer, catching the right action, in proper focus.
A 2nd video angle would be good too. The 1st angle shows the motion in profile, a 2nd could be parallel to the plane of the nail, looking upwards at the finger, into the soundboard. To show exactly where left/right on the nail that the string is leaving the nail. I put a sample photo below. I've rotated the camera to be parallel to the nail, for most useful viewing angle, so it looks like my fingers are perpendicular to the string (Tarrega style), but they're not.
And LOL, please don't critique my technique...filming this is really a 2-person job (with my phone at least), but I was alone, so my guitar is nearly vertical, with my right elbow above the upper bout, near the neck, and my fingers are at right angles to the string like I'm the reincarnation of Tarrega. And my fingernail shape is genetically poor for CG anyway (& index nail currently has a repair job on it
Another video angle could be:
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Beginner. Yamaha G-50A. Connecticut, USA