The cartoon, as the title suggests, is set at the Hollywood Bowl in California, where Tom is conducting a large orchestra.
[1][2][3] The cartoon was animated by Kenneth Muse, Irven Spence, Ray Patterson and Ed Barge.
Tom walks onto the stage, ready to conduct a cat orchestra to the overture to "Die Fledermaus".
Tom is left aimlessly running around to play the instruments until Jerry finishes conducting the symphony.
As expected, Jerry takes all applause and credit for himself, and then points to the "One-man orchestra" Tom, who is now exhausted.