Watch Hep Cat Symphony (1949)
Source And Credit
This video is hosted by and streams from Internet Archive. License stated there, Public Domain. Every right stays with its owner. Request removal.
About This Film
A group of mice living within the walls of a house forms an orchestra. However, the music disturbs the cat who also lives there, so the cat sets out to eliminate the mice. You can find more information regarding this film on its IMDb page .