Cook played multiple roles on the 1977 concept album "Consequences", written and produced by former 10cc members Kevin Godley and Lol Creme. A mixture of spoken comedy and progressive rock with an environmental subtext, "Consequences" started as a single that Godley and Creme planned to make to demonstrate their invention, an electric guitar effect called the Gizmo, which they developed in 10cc. The project grew into a three-LP box set. The comedy sections were originally intended to be performed by a cast including Spike Milligan and Peter Ustinov, but Godley and Creme eventually settled on Cook once they realised he could perform most parts himself.