The method is familiar to me when I build a piece of furniture or do work in my garden. Playing music and dancing can have minds of their own, twisting us to their will, no doubt. When the rhythm takes over and the guitar plays itself through your fingers
Hey Caps - that last bit is interesting to me "the guitar plays itself through your fingers"... I have read that true, magical connection is like that. When the witch becomes so familiar with the stream, so much a part of it, and so attuned to it, that spells are no longer necessary. The witch herself (himself lol) becomes the stream and becomes the magic.