Blues rock

They typically recreated electric Chicago blues songs, such as those by Willie Dixon, Muddy Waters, and Jimmy Reed, at faster tempos and with a more aggressive sound common to rock.

In the UK, the style was popularized by groups such as the Rolling Stones, the Yardbirds, and the Animals, who put several blues songs into the pop charts.

In the US, Johnny Winter, the early Allman Brothers Band, and ZZ Top represented a hard rock trend, along with Led Zeppelin, Ten Years After, Chicken Shack, and Foghat in the UK.

The Allman Brothers Band's version of "Stormy Monday", which uses chord substitutions based on Bobby "Blue" Bland's 1961 rendition, adds a solo section where "the rhythm shifts effortlessly into an uptempo 6/8-time jazz feel".

Fronted by blues harp player and singer Paul Butterfield, it included two members from Howlin' Wolf's touring band, bassist Jerome Arnold and drummer Sam Lay, and later two electric guitarists, Mike Bloomfield and Elvin Bishop.

AllMusic's Michael Erlewine commented, "Used to hearing blues covered by groups like the Rolling Stones, that first album had an enormous impact on young (and primarily White) rock players.

"[16] The second album East West (1966) introduced extended soloing – the 13 minute instrumental title track included jazz and Indian raga influences – that served as a model for psychedelic and acid rock.

[16] Other popular mid-1960s groups, such as the Doors and Big Brother and the Holding Company with Janis Joplin, also adapted songs by blues artists to include elements of rock.

In the UK, several musicians honed their skills in a handful of British blues bands, primarily those of Cyril Davies and Alexis Korner.

[19] When Eric Clapton left Mayall to form Cream, they created a hybrid style with blues, rock, and jazz improvisation, which was the most innovative to date.

[18] Jimmy Page, who replaced Beck in the Yardbirds, followed suit with Led Zeppelin[18] and became a major force in the 1970s heavy metal scene.

Gary Clark Jr., known for his fusing of blues, rock and soul, has been classified as a blues rock artist,[27] with Rolling Stone's Jonathan Bernstein referring to Clark's albums Blak and Blu (2012) and The Story of Sonny Boy Slim (2015) as "steeped in a sleek, modern blues-rock production style".