Provocateur, cult figure, cerebral rock star, and studio experimentalist, Brian Eno has greatly influenced an encyclopedia of styles—from art rock to punk to world music to techno to ambient music. A founding member of Roxy Music, he went on to work as a solo artist and a producer/collaborator with U2, Talking Heads, David Bowie, Sting, Bono, and others. This diary covers four recording projects in the evolution.