By now, most rock fans have heard the story about how Rush saved their career with the release of their fourth album, “2112.” The previous album, “Caress of Steel,” was a commercial flop and the band’s record label made it clear that Rush’s future was hanging by a thread. Going against label advice, Rush stuck to their guns and put out the album they wanted to make, a concept album whose first side told an anti-totalitarian, anti-fascist story in seven glorious parts.

“2112” was slow out of the gate, but eventually gained significant traction for the band and saved their career. Tonight on “40 for 40” (at 8:40), we’ll be playing career-saving highlights from close to a dozen bands from the Loop’s 40 year history. Which moments stand out to you? Here’s another obvious one: