Gus Dudgeon Solo AudiosBlue Horizon (Records) Audios All Gus Dudgeon Media All Gus Dudgeon Media Rec Eng The Complete Blue Horizon Sessions (2006) Eddie (Edward Riley) Boyd Rec Eng A Hard Road (2003 Expanded Edition) (2003) John Mayall And The Bluesbreakers Rec Eng The Blue Horizon Story 1965-1970 Vol. 1 (1997) Various Artists Engineer London Blues: 1964-1969 (1992) John Mayall Engineer Crusade (1967) John Mayall And The Bluesbreakers Guest A Hard Road (1967) John Mayall And The Bluesbreakers Rec Eng John Mayall Plays John Mayall: Live At Klooks Kleek (1965) John Mayall And The Bluesbreakers Rec Eng Blues: The British Connection (0000) Various Artists Engineer The First Five Years (0000) John Mayall Guest King Brilliant (0000) Howard Werth & The Moonbeams Engineer Bluesbreakers With Eric Clapton (0000) John Mayall And The Bluesbreakers Engnrd History Of British Blues (0000) Various Artists Produced Sounds Of The Seventies: 1976 (0000) Various Artists Writer White Boy Blues (0000) Various Artists Rec Eng Eddie Boyd And His Blues Band Featuring Peter Green (0000) Eddie (Edward Riley) Boyd Engineer Raw Blues (0000) Various Artists