It’s hard to make instrumental rock interesting. Ride out one boring riff for too long and your listeners are asleep, or worse—listening to another band. That’s why most bands eschewing vocals stick to the following proven blueprint: Start your songs softly and sparsely. You have at least six minutes to finish, so no hurry. Slowly build to a louder, more aggressive crescendo, then back off again a little after the midpoint. When you’ve got about a minute to go, bring on the heavy distortion and the cymbal-bashing, and ride it out to the end. Explosions In The Sky faithfully adheres to this formula on its sophomore disc. And what do you know—it works.