S5·E3 Samantha on the Keyboard

Endora gets Tabitha to play beautifully on the piano, and Darrin dares Samantha to learn how to play the mortal way. The Piano teacher hears Tabitha play and invites a famous conducter to see her play. Without magic, Tabitha does a poor job and the conductor is stunned. Samantha then finds a real prodigy for the conductor, and wins the bet with Darrin.