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Soft Machine are an English rock band from Canterbury formed in mid-1966 by Robert Wyatt (drums, vocals, 1966–1971), Kevin Ayers (bass, guitar, vocals, 1966–1968), Daevid Allen (guitar, 1966–1967), and Mike Ratledge (organ, 1966–1976). As a central band of the Canterbury scene, the group became one of the first British psychedelic acts and later moved into progressive rock and jazz fusion. Their varying line-ups have included former members such as Hugh Hopper (bass, 1969–1973), Elton Dean (saxophone, 1969–1972), and Andy Summers (guitar, 1968), and currently consists of John Marshall (drums), Roy Babbington (bass), John Etheridge (guitar), and Theo Travis (saxophone, flutes, keyboards)

Van der Graaf Generator are an English progressive rock band, formed in 1967 in Manchester by singer-songwriters Peter Hammill and Chris Judge Smith and the first act signed by Charisma Records. They did not experience much commercial success in the UK, but became popular in Italy during the 1970s. In 2005 the band reformed, and are still musically active with a line-up of Hammill, organist Hugh Banton and drummer Guy Evans.

Emerson, Lake & Palmer (ELP) were an English progressive rock supergroup formed in London in April 1970. The band consisted of Keith Emerson (keyboards), Greg Lake (vocals, bass, guitar and producer) and Carl Palmer (drums and percussion). With nine RIAA-certified gold record albums in the US, and an estimated 48 million records sold worldwide, they were one of the most popular and commercially successful progressive rock bands in the 1970s, with a musical sound including adaptations of classical music with jazz and symphonic rock elements, dominated by Emerson's flamboyant use of the Hammond organ, Moog synthesizer, and piano (although Lake wrote several acoustic songs for the group).

Jethro Tull are a British rock band formed in Blackpool, England, in 1967. Initially playing blues rock and jazz fusion, the band soon incorporated elements of English folk, hard rock, and classical music, forging a signature progressive rock sound. The group’s bandleader, founder, primary composer and only constant member is Ian Anderson, a multi-instrumentalist who mainly plays flute and acoustic guitar, and is also the lead vocalist. The group has featured a revolving door of musicians throughout the decades, including significant contributors such as electric guitarist Martin Barre (the longest serving member besides Anderson), keyboardists John Evan, Dee Palmer, Peter-John Vettese and Andrew Giddings, drummers Clive Bunker, Barrie "Barriemore" Barlow and Doane Perry, and bassists Glenn Cornick, Jeffrey Hammond, John Glascock, Dave Pegg and Jonathan Noyce.

Amon Düül II (or Amon Düül 2, Pronunciation: Amon Düül) is a German rock band. The group is generally considered to be one of the pioneers of the West German krautrock scene. Their 1970 album Yeti was described by British magazine The Wire as "one of the cornerstones of ... the entire Krautrock movement".

The band emerged from the radical West German commune scene of the late 1960s, with others in the same commune including some of the future founders of the Red Army Faction. Founding members are Chris Karrer, Dieter Serfas, Falk Rogner (born 14 September 1943), John Weinzierl (born 4 April 1949), and Renate Knaup-Krötenschwanz (born Renate Aschauer-Knaup, 1 July 1948).

The band was founded after Weinzierl and the others met at the Amon Düül 'art commune' in Munich. The commune consisted mainly of university students, who formed a music group initially to fund the commune, with everyone who lived there joining in to play music whether or not they had any experience or ability. The commune split when they were offered an opportunity to record, which was boycotted by the more musically proficient members of the commune (who went on to form Amon Düül II). Recordings were made by the other members but were of very poor quality and were only released later (under the name Amon Düül) to capitalise on the success of Amon Düül II's albums. As Amon Düül II grew and personnel changed, they still remained a commune, living together as a band.

Nice was the third album by the Nice; it was titled Everything As Nice As Mother Makes It in the US after Immediate broke their distribution deal with Columbia. Nice had been initially released in the US with a slightly longer version of Rondo 69 not available on the UK or on the independently distributed US versions. The first US version of Nice was briefly reissued in 1973 by Columbia Special Products.

Continuing the Nice's fusion of jazz, blues, and rock, this album consists of studio (1–4) and live (5–6) tracks, the latter having become firm favourites in the band's live performances.

The album reached number 3 in the UK Album charts.

The UK version of the album came in a gatefold sleeve, showing photographs of the band relaxing at an unknown location, the interior of which featured handwritten notes by Keith Emerson.

Pink Floyd are an English rock band formed in London in 1965. Gaining an early following as one of the first British psychedelic groups, they were distinguished by their extended compositions, sonic experimentation, philosophical lyrics and elaborate live shows. They became a leading band of the progressive rock genre, cited by some as the greatest progressive rock band of all time.

Pink Floyd were founded in 1965 by Syd Barrett (guitar, lead vocals), Nick Mason (drums), Roger Waters (bass guitar, vocals), and Richard Wright (keyboards, vocals). Under Barrett's leadership, they released two charting singles and the successful debut album The Piper at the Gates of Dawn (1967). Guitarist and vocalist David Gilmour joined in December 1967; Barrett left in April 1968 due to deteriorating mental health. Waters became the primary lyricist and thematic leader, devising the concepts behind the band's peak success with the albums The Dark Side of the Moon (1973), Wish You Were Here (1975), Animals (1977) and The Wall (1979). The musical film based on The Wall, Pink Floyd – The Wall (1982), won two BAFTA Awards. Pink Floyd also composed several film scores.

Caravan are an English rock band from the Canterbury area, founded by former Wilde Flowers members David Sinclair, Richard Sinclair, Pye Hastings, and Richard Coughlan in 1968. The band have never achieved the great commercial success that was widely predicted for them at the beginning of their career, but are nevertheless considered a key part of the Canterbury scene of progressive rock acts, blending psychedelic rock, jazz, and classical influences to create a distinctive sound.

Gentle Giant were a British progressive rock band active between 1970 and 1980. The band were known for the complexity and sophistication of their music and for the varied musical skills of their members. All of the band members were multi-instrumentalists. Although not commercially successful, they did achieve a cult following.

The band stated that their aim was to "expand the frontiers of contemporary popular music at the risk of becoming very unpopular", although this stance was to alter significantly with time.

Gentle Giant's music was considered complex even by progressive rock standards, drawing on a broad swathe of music including folk, soul, jazz, and classical music. Unlike many of their progressive rock contemporaries, their "classical" influences ranged beyond the Romantic and incorporated medieval, baroque, and modernist chamber music elements. The band also had a taste for broad themes for their lyrics, drawing inspiration not only from personal experiences but from philosophy and the works of François Rabelais and R. D. Laing. In 2015 they were recognised with the lifetime achievement award at the Progressive Music Awards.

Aphrodite's Child was a Greek rock and pop band formed in 1967, by Vangelis Papathanassiou, Demis Roussos, Loukas Sideras, and Silver Koulouris (guitar). They initially found success in Europe with hit singles like "Rain and Tears", "End of the World", "I Want to Live", and "It's Five O'Clock", before pivoting to progressive rock with their third and final album, 666 (1972). An ambitious concept album inspired by the Book of Revelation, it later gained critical acclaim and has appeared on a number of lists of the top progressive and psychedelic albums of all time.

The Cheerful Insanity of Giles, Giles and Fripp is a 1968 album from the English group Giles, Giles and Fripp. The music shows a varied mix of pop, psychedelic rock, folk, jazz and classical influences. The songs on each LP side are connected with comedic spoken word pieces, "The Saga of Rodney Toady" and "Just George", which tell stories.

Iron Butterfly is an American rock band formed in San Diego, California, in 1966. They are best known for the 1968 hit "In-A-Gadda-Da-Vida", providing a dramatic sound that led the way towards the development of hard rock and heavy metal music. Although their heyday was the late 1960s, the band has been reincarnated with various members with varying levels of success with no new recordings since 1975. Their second album In-A-Gadda-Da-Vida (1968) remains a best-seller, and Iron Butterfly was the first group to receive an In-House platinum album award from Atlantic Records. Their music has found a significant impact on the international rock scenes, influencing numerous acts such as Black Sabbath, AC/DC, Rush, Alice Cooper, Mountain, Uriah Heep, Soundgarden, Stone Temple Pilots and Queens of the Stone Age.

Hawkwind are an English rock band known as one of the earliest space rock groups. Since their formation in November 1969, Hawkwind have gone through many incarnations and have incorporated many different styles into their music, including hard rock, progressive rock and psychedelic rock. They are also regarded as an influential proto-punk band. Their lyrics favour urban and science fiction themes.

Many musicians, dancers and writers have worked with the band since their inception. Notable musicians who have performed in Hawkwind include Lemmy, Ginger Baker, Robert Calvert, Nik Turner and Huw Lloyd-Langton. However, the band are most closely associated with their founder, singer, songwriter and guitarist Dave Brock, who is the only remaining original member.

Love is an American rock band formed in Los Angeles in 1965. Led by frontman and primary songwriter Arthur Lee, they were one of the first racially diverse American rock bands. Their sound incorporated an eclectic range of styles including garage, folk-rock, and psychedelia. While finding only modest success on the music charts, peaking in 1966 with their Top 40 hit "7 and 7 Is", Love would come to be praised by critics as their third album, Forever Changes (1967), became generally regarded as one of the best albums of the 1960s.

Traffic were an English rock band formed in Birmingham in April 1967 by Steve Winwood, Jim Capaldi, Chris Wood and Dave Mason. They began as a psychedelic rock group and diversified their sound through the use of instruments such as keyboards (such as the Mellotron and harpsichord), sitar, and various reed instruments, and by incorporating jazz and improvisational techniques in their music.

The band had early success in the UK with their debut album Mr. Fantasy and non-album singles "Paper Sun", "Hole in My Shoe", and "Here We Go Round the Mulberry Bush," Their self-titled 1968 album was their most successful in Britain and featured one of their most popular songs, the widely covered "Feelin' Alright?" Dave Mason left the band shortly after the album's release, as did Steve Winwood the following year when he joined the supergroup Blind Faith, and Traffic effectively disbanded. An album compiled from studio and live recordings, Last Exit, was released in 1969.

Roger Keith "Syd" Barrett was an English singer, songwriter, and musician who co-founded the rock band Pink Floyd in 1965. Barrett was their original frontman and primary songwriter, becoming known for his whimsical style of psychedelia, English-accented singing, and stream-of-consciousness writing style. As a guitarist, he was influential for his free-form playing and for employing effects such as dissonance, distortion, echo and feedback.

Arthur Wilton Brown is an English singer and songwriter best known for his flamboyant and theatrical performances, eclectic work and his powerful, wide-ranging operatic voice, in particular his high pitched banshee screams. He is also notable for his unique stage persona, featuring extreme facepaint and a burning helmet.