All three of Family's 1970 BBC sessions (all of them previously unreleased) are on this 77-minute CD, all of them dating from the time when Poli Palmer had joined the band to fill out its sound on flute, piano, vibes, and percussion. Only the first of the three sessions is taken from the master tapes, with the other two surviving only in the form of the off-air recordings that served as sources for this CD. Also, that first session (from January 1, 1970) wasn't a typical performance by the group, given that - because singer Roger Chapman was ill - the band performed two instrumentals (one of which, the jazzy "Here Comes the Grin," makes its first appearance here)…

Mind Garage was an American psychedelic rock and roll band from Morgantown, West Virginia, and a progenitor of Christian rock music. Their "Electric Liturgy" performed in 1968 was the first documented Christian rock worship service, and their 1969 eponymous debut RCA album was one of the earliest Christian rock albums released…

John Renbourn - The Lady And The Unicorn (1970). The Lady and the Unicorn is the 1970 solo album by British folk musician John Renbourn. Featuring Terry Cox playing hand drums and glockenspiel, with future John Renbourn band member Tony Roberts and violinist Dave Swarbrick. The repertory consists of medieval and early classical pieces, interspersed with the expected folk material - keyboard works from the Fitzwilliam virginal book (transcribed for guitar) stand alongside traditional tunes such as "Scarborough Fair," which turns up as part of an 11-minute track that also incorporates "My Johnny Was a Shoemaker," with Swarbrick at the top of his form on violin. The album is entirely instrumental, but as with other Renbourn releases, one hardly misses the vocals…

Progressive in texture for the most part, Supertramp's debut album became increasingly disregarded as they blossomed commercially through the '70s. The album was the only one on which drummer Bob Miller and guitarist Richard Palmer appeared, replaced by Kevin Currie and Frank Farrell for the Indelibly Stamped release which surfaced a year later…

Eric Clapton's eponymous solo debut was recorded after he completed a tour with Delaney & Bonnie. Clapton used the core of the duo's backing band and co-wrote the majority of the songs with Delaney Bramlett – accordingly, Eric Clapton sounds more laid-back and straightforward than any of the guitarist's previous recordings. There are still elements of blues and rock & roll, but they're hidden beneath layers of gospel, R&B, country, and pop flourishes…

Rumbling, generic hard rock/metal, the record's primary distinction being that it was one of the first of its kind. Touches like the harpsichord on the ballad "Lake Isle of Innersfree" made it clear that the band was interesting in more than bombastic boogie…

Before scaling the hard rock heights with Rainbow and Alcatrazz, Graham Bonnet belted out contemporary covers with his cousin, Trevor Gordon, in the Marbles. Born in Lincolnshire, England, Bonnet performed with a blues band and a jazz trio before hooking up with Gordon, who played with the Bee Gees, and the Marbles caught the interest of media mogul Robert Stigwood at RSO Records. The first Marbles single, "Only One Woman," a Gibb brothers composition, did well in the U.K. and Australia. Another Gibb tune, "The Walls Fell Down," also received airplay, but the Marbles abruptly broke up. Transitory behavior would become typical of Bonnet's career. Though the band split, the eponymous Marbles debut dropped in 1970. The 2003 CD reissue on Repertoire adds six bonus tracks, including mono single versions of four tracks from the LP and two 1969 B-sides.