\’OK Computer\’, Radiohead\’s third album, is the bombastic follow-up to 1995\’s sleeper hit \’The Bends\’, which left critics and listeners as impressed with the band\’s ability as they were curious about their potential. In spite of its technological-sounding title and apocalyptic sci-fi themes, \’OK Computer\’ is firmly grounded in the rock verities. Waves of guitars rage beneath the haunting melodies and near-hysterical fits of singer Thom Yorke. This complex, intense swarm of guitars is held aloft by a solid, inventive rhythm section and an impressive array of piano and keyboard textures. \’Paranoid Android\’ is a six-minute-plus epic with alternating time signatures, wild dynamic shifts, drama and adrenaline to spare. \’Let Down,\’ with its double-tracked vocals and rhythmic throb, may give a brief glimpse back at Radiohead\’s past, but at no point is \’OK Computer\’ anything but a hurtle forward.