Continuing the twisted pop explorations of Here Come the Warm Jets, Eno's sophomore album, Taking Tiger Mountain (By Strategy), is more subdued and cerebral, and a bit darker when he does cut loose, but it's no less thrilling once the music reveals itself. It's a loose concept album – often inscrutable, but still playful – about espionage, the Chinese Communist revolution, and dream associations, with the more stream-of-consciousness lyrics beginning to resemble the sorts of random connections made in dream states.