It began with the theft of a bunch of their instruments, continued with writing sessions in a rat-infested (and possibly haunted) old house, and finished in a race to meet a deadline. But the result was one of Prog-Rock's greatest concept albums. It would also prove to be the last with lead singer Peter Gabriel. To mark the release of the new box set and Dolby Atmos mix of the album, Randy traces the story behind The Lamb Lies Down on Broadway by Genesis on the Chronicles of Rock.