Animated children's film of the little tuba who tires of only being able to sing "Oompah, Oompah." and so decides to go off and find a melody of his own.
Andrew, a symphony manager, learns that someone has plans to steal a priceless violin, but when the events play out, Andrew is surprised by the identity of the culprit.
Examines the instruments that make up an orchestra, their arrangement on the stage, the role of the conductor, and the need of the musicians to practice.