About blue tape- I'm violinist , but now for about two years I have problems with my left hand.Actually it's from neck zone- some of discs are not really in place and they are pressing on nerves time to time-then my fingers are tingling, if hand is not relaxed hanged down...Now it's just few minutes of playing and I have this terrible feeling...Tapes should help to keep musculs relaxed while playing...
But it's not very effective yet.
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Now that's very interesting. Bravo on your craft. Sorry to hear about the difficulty.