The music of Explosions in the Sky is all about the tension of the slow build. The instrumental band's sweeping arrangements unfold like deconstructed rock anthems, where a flash of a melancholic guit

The music of Explosions in the Sky is all about the tension of the slow build. The instrumental band's sweeping arrangements unfold like deconstructed rock anthems, where a flash of a melancholic guitar note can suddenly give way to a churning rhythmic march.

But as recently as three years ago, Explosions lacked so much as a manager, and seemed destined for underground status. One football movie later, and things began to change.

If scoring the 2004 Peter Berg film "Friday Night Lights" didn't turn Explosions in the Sky into an overnight success, it did give the band a national presence. And, ahead of the Feb. 20 release of a new album, "All of a Sudden I Miss Everyone," this once tiny band on an even smaller label (Temporary Residence Ltd.) can be heard on any given Wednesday, as the NBC series named after Berg's movie regularly uses Explosions in the Sky's music.

"It wasn't like we suddenly sold 30,000 copies," drummer Chris Hrasky says. "It was still a gradual incline. But we are getting more younger kids at shows. If you look on our MySpace page, we now have 14-year-old kids who listen to emo music listening to us. Three years ago, we were more exclusive to underground, experimental music fans."