HE TEACHES 900 PEOPLE PIANO EVERY WEEK AND HAS NEVER PLAYED A NOTE HIMSELF$34/mo. 900 students. 1 person. thirty-four bucks a month times nine hundred students clears just over $30,000 every monthevery student thinks they have a coach who watched their fingering and prescribed the exact next exercise, what they actually have is one guy's system that reads their weekly practice video, catches where the coordination slipped on the third try, and writes the following week's routine tuned to that ex