Which was not as easy as I'd thought it would be.
But I tried. And now, thanks to the music and literature blog Largehearted Boy, everyone can know exactly what tune I had in my head when I wrote the grand finale circus scene in the story, "The Greatest Show." (Lest you think the choice was some ironic and hip pick like The Trammps' "Disco Inferno," it's not... because "ironic and hip" isn't a suit I wear.) You can also argue with my choices of music to go with "Mrs. Liszak" or "Son of Captain America," or "History Class."
So here you go: a little Jiminy Cricket, a little Derek Trucks, a little Benny Goodman, and a little Schoolhouse Rock.