The British Blues Boom found its fullest expression in late 60s releases from the likes of The Yardbirds, Cream and the Rolling Stones, when the blues-fuelled energy of the mod clubs in the earlier part of the decade had drifted and all-night dancing had been replaced by a laid-back, dope-smoking vibe.
Key players such as John Mayall, Eric Clapton and Peter Green reached a crossroads in their careers, as the blues scene split between purists and those taking the path towards out-and-out rock. Meanwhile, the likes of Free, Led Zeppelin and Jethro Tull took their first steps towards 70s greatness.
From Spooky Tooth to Chicken Shack to Ten Years After and beyond, we look back at the albums and bands that really left their mark.
