"I am a physician and have studied anatomy in detail. Your teacher is PARTIALLY correct. It depends on the type of stroke.
I suggest that:
- your teacher needs to read C. Parkening book Vol 1 and Vol 2 published by Hal Leonard (search the forum).
Parkening is absolutely correct that:
1. Rest stroke: most of RH finger movement is through the "knuckle" (medical term is MCP = metacarpo-phalangeal joint).
2. Tirando: most of RH movement is through the 'middle joint' (medical term is PIP = Proximal Inter-phalangeal joint).
Most CG teachers are like people we joke in medicine about young doctors "see-one-do-one teach-one"...basically the intern/resident sees one case, do one case and becomes the expert teaching others what to do!!!
So, my advice is:
a. buy 2 copies of C Parkening Vol1 and Vol 2 (published in 1997 or so), one copy for you and one copy for your teacher so future students can benefit from him/her.....
b. practise your RH WITHOUT the guitar. Hold your RH and move the fingers at the PIP joints repeatedly for about 10 minutes, your playing will improve.
c. Go to youtube and watch John Williams, great RH technique."
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All theories and anatomy aside, go and buy John Williams Seville Concert DVD (by "Kultur Films Inc.") for $14.
This is the best investment ever.
Put it in your DVD player and watch JW fingers closely, put it in SLOW MOTION so you can study his fingers. Of all the famous CG players, JW perhaps has the best posture, techniques and sound. Also his technique, from a medical standpoint, is very good in the sense that it is medically correct (correct wrist, correct arch, correct pacement of fingers) with very low risk of any injury.
JW uses FREE stroke 99% of the time. He has the best free stroke. If you watch it closely then you will see that during a FREE stroke, the contribution from each joint is approx.:
- MCP = Metacarpo-phalangeal joint (knuckle):..............15%, yes the MCP moves but little.
- PIP = Proximal Inter-Phalangeal Joint (middle joint):......80%, the majority of movement is from here.
- DIP = Distal Inter-Phalangeal Joint (tip joint):..............5%, there is a little movement here.
I have studied many famous CG players by watching their fingers and angles of attack (Vidovic, Kanengiser, Tennant, Bream, JW etc. etc.) and I have to say that JW has the BEST anatomy, posture, and techniques. Watch the Seville DVD very carefully, especially SLOW motion, you will learn a ton. Trust me.
Oh BTW, you study at a good place Univ of Toronto where Nobert Kraft started the CG program there. From your description, it looks like all the CG students are "cloned" the same way. Students need to see other techniques as well. So keep you eyes and ears open, as they say "there is more than one way to skin a cat". So go watch JW Seville DVD, David Russell etc., these 2 people have the best free stroke.
Reference
http://www.classicalguitardelcamp.com/viewtopic.php?f=1&t=29737รูปมือ MCP (ข้อโคน) และ PIP (ข้อกลาง) รูปในกระทู้มองไม่เห็น , click ที่ link เอาครับ
https://www.img.in.th/images/bdfa64ad09eac58c073b1be6ffeadfa8.jpg