The kid that handled the music box was hittin' a jag-time tune.
6 seconds sound clip from the The Shooting of Dan McGoo (1945) movie soundboard.
You can hear this line at 00:01:17 in the Blu-ray version of the movie.
Quote context
[...]
- And now, ladies and gentlemen, television's final triumph, a direct telecast from the planet Mars.
- Come in, Mars. Come in, Mars. We're getting a picture. We're getting a picture. And this is it!
- A bunch of the boys were whooping it up in the Malamute Saloon.
- The kid that handled the music box was hittin' a jag-time tune.
- What a repulsive way to make a living.
- While back of the bar in a solo game. sat Dangerous Dan McGoo.
- Hello, all you happy tax-payers.
- And watching him was his light-o'-love, the lady that is known as Lou.
[...]