At the home of Viennese composer Johann Strauss lived Johann Mouse. Whenever the composer played his waltzes, the mouse would dance to the music, unable to control himself. One day, when Strauss was away, the house cat played his master's music. When word got out about a piano-playing cat and a dancing mouse, they were commanded to perform for the emperor.
| Visual Effects | Ed Barge | Animation |
| Directing | Joseph Barbera | Director |
| Visual Effects | Irven Spence | Animation |
| Directing | William Hanna | Director |
| Visual Effects | Ray Patterson | Animation |
| Visual Effects | Kenneth Muse | Animation |
| Production | Fred Quimby | Producer |
| Art | Robert Gentle | Background Designer |
| Sound | Scott Bradley | Music Director |
| Sound | Jakob Gimpel | Music Arranger |
