Roots of Cream

John Mayall & the Bluesbreakers were an English blues rock band led by multi-instrumentalist, singer and songwriter John Mayall. The band has been influential as an incubator for British rock and blues musicians. Many of the best known bands to come out of Britain in the 1960s and 1970s had members that came through the Bluesbreakers at one time, forming the foundation of British blues music that is still played heavily on classic rock radio. Among those with a tenure in the Bluesbreakers are guitarists Eric Clapton, Peter Green and Mick Taylor, bassists John McVie, Jack Bruce and Tony Reeves, drummers Hughie Flint, Aynsley Dunbar, Mick Fleetwood and Jon Hiseman, and numerous others.

Kaleo is an Icelandic blues rock band which formed in Mosfellsbær in 2012. It consists of lead vocalist and guitarist Jökull Júlíusson, drummer Davíð Antonsson, bassist Daniel Kristjánsson, lead guitarist Rubin Pollock and harmonicist Þorleifur Gaukur Davíðsson. They have released four studio albums, Kaleo (2013), A/B (2016), Surface Sounds (2021), and Mixed Emotions (2025), as well as the EP Glasshouse (2013).

Manfred Mann was an English-based rock band formed in London in 1962. They were named after their keyboardist Manfred Mann. The group had two lead vocalists: Paul Jones from 1962 to 1966 and Mike d'Abo from 1966 to 1969. Other members of various group line-ups were Mike Hugg, Mike Vickers, Dave Richmond, Tom McGuinness, Jack Bruce, Lyn Dobson, Henry Lowther and Klaus Voormann.

"While My Guitar Gently Weeps" is a song by the English rock band the Beatles from their 1968 double album The Beatles. It was written by George Harrison, the band's lead guitarist, as an exercise in randomness inspired by the Chinese I Ching. The song conveys his dismay at the world's unrealised potential for universal love, which he refers to as "the love there that's sleeping".

Nehemiah Curtis "Skip" James was an American Delta blues singer, guitarist, pianist and songwriter. AllMusic stated: "Coupling an oddball guitar tuning set against eerie, falsetto vocals, James' early recordings could make the hair stand up on the back of your neck."

RSO Records was a record label formed by rock and roll and musical theatre impresario Robert Stigwood and record executive Al Coury in 1973. The letters "RSO" stood for the Robert Stigwood Organisation.

Isaiah Ross, known as Doctor Ross, was an American blues musician who usually performed as a one-man band, simultaneously singing and playing guitar, harmonica, and drums. Ross's primal style has been compared to John Lee Hooker, Blind Boy Fuller and Sonny Boy Williamson I.