Back in the mid 1990s, when post-rock dominated the indie landscape, instrumental bands offered a sonic vision beyond what they saw to be the tired rock clichés of 4/4 time and G-C-D riffs, but very often negated the simple energy that makes rock so vital in the process. On their second full-length ALL OF A SUDDEN I MISS EVERYONE, Explosions in the Sky do not make such mistakes. The Austin quartet (yes, there are only four of them generating all this sound) take cues from the post-rock era but apply an energetic, improvisational rock approach full of relentless tension and bursts of beauty. The sound of a chamber orchestra afire, ALL OF A SUDDEN I MISS EVERYONE packs a wallop.