The 5,000 Fingers of Dr. T

The 5,000 Fingers of Dr. T (1953) is a fantastical musical film where a young boy named Bart dreams of escaping the clutches of his tyrannical piano teacher, Dr. Terwilliker, who enslaves children to play a massive piano. With the help of his loyal plumber friend, Bart endeavors to free himself and the other children from this outlandish musical nightmare.