Complexity is the name of the game for post-rock, and Explosions in the Sky does it well. With most rock bands, guitars and vocals take prominence. Good drum and bass work can and will elevate the band to greater heights because they usually take a back seat. With All Of A Sudden I Miss Everyone, every single instrument has its own say in the album sound. No instrument takes a back seat, and while it may be due to a lack of vocals, it is certainly a welcome change of pace in the modern rock scene.