Late to this party! I am a huge fan of holding still and of musicians holding still in general.
Though I like Jarrett.
At the very least it should be something we confront in ourselves and make a decision about like ANY other aspect of technique.
Mr. Tuneh plays great, though. And he uses the "right" bow!
I agree except for the "right bow"
I may be mistaken, but I don't remember Keith (one of my personal favorites) going through those kinds of contortions when he was with Charles Lloyd or Miles. I think it's just an affectation spurred by fame and fortune with a big hat-tip to his idol, John Coates. My wife always says that he sounds like Jerry Lewis with his high-pitched, whiny vocalizations