The Music Man: Tales From Jim Irwin, Bulls Sound Engineer

From "Sirius" to "Rock and Roll Part 2," how music evolved during the dynasty.

Jim Irwin running the Bulls music from the organ loft at Chicago Stadium during the first three-peat. (Photo by Michael L. Abramson for Sports Illustrated)

He’s holding up the carts that brought Chicago to a frenzy. Showing me. That’s what they call them — carts. They’re the music cartridges that he, the Stadium’s sound engineer, would pop into the cart …