When the song ends, Mickey takes the stage and plays piano aggressively, ultimately having a fistfight with the instrument.
This is the second Mickey Mouse cartoon involving a piano concert, following The Opry House, which was released seven months earlier in March 1929.
"[2] On the Disney Film Project, Ryan Kilpatrick writes: "The best [part] is the personality animation of Mickey, showing his anger, frustration or happiness at what he's playing on the piano.
It's very well done, with simple moves of the eyebrow and eyes, turns of his mouth, or the direction of his nose or shoulders expressing the entire emotion.
"[5] The short was released on December 7, 2004 on Walt Disney Treasures: Mickey Mouse in Black and White, Volume Two: 1929-1935.