Love in Tune (1946)

This Pacemaker short has a sub-plot showing the effects of music on a boy and girl in love, which is just the setup for Hal McIntyre and His Orchestra to provide the music, while Nancy Reed sings "Hoopty-Doopty Blues," Frankie Lester does the vocals on "With Every Breath I Take", and Bobby Guyeron blows along at "Thirty Miles an Hour" on his trumpet. And get this all done in ten minutes with a story line thrown in.