Audio CD, commercially released and distributed by BMG records in 1990, music made and produced by Leon Redbone. A leaflet published by Central Advertising Services (BRB) is enclosed in the CD case. The leaflet promotes InterCity services with text and photographs. The CD contains three tracks: 1. Relax, 2. Untwist and 3. 14th Street Blues.

The music tracks on this compact disc (CD), Relax and Untwist, were featured in the popular and influential British Rail InterCity television advertising campaign of 1988, produced by the advertising agency Saatchi & Saatchi. At the time of this marketing initiative, Dr John Prideaux was director of British Rail's InterCity passenger division.