Not a bad idea, Al.

George Street, one of the voice teachers I mentioned above, told me that he knew a violin teacher in New York who worked only with concert artists. And he charged mucho bucks!   From time to time, classical musicians and singers find that something isn't working right, and they will look up one of their old teachers or someone like the fellow Mr. Street knew. For a "tune-up!"

Mr. Street said that he asked this fellow, "Just what can you teach a person like Jascha Heifetz or Yehudi Menuhin?"

"Lesson One," the man answered. "When something goes wrong with a virtuoso's playing, invariably it is something very basic. Perhaps it's the way they hold the bow, or it could be the position of their left hand, or something to do with fingering. But whatever it is, it's something so simple that even they forgot it, and miss it when trying to analyse their own playing. They think it has to be something far more drastic than that. But it's drastic enough! Usually a couple of lessons and some concentrated practice, and they're back on track again."

Whenever I start having problems vocally, I pull out the notebook I kept when taking voice lesson and go through the early notes and exercises. Or with the guitar, I pull out Aaron Shearer's Classic Guitar Technique, Volume I.
That usually does it. If it doesn't, I go take a few lessons.

Don Firth