Soon after the release of Old Boot Wine, the band was pared down to the duo of Cockerham and Gaskin, who were by now romantically involved. Their final album, Bells, Boots and Shambles, was recorded in Morgan Studios in London and produced once more by Max Hole. The album was issued by Polydor in 1973, B&C Records having gone out of business the previous year. The album featured several guest musicians, including former members Cusack and Borrill, and Henry Lowther on trumpet. Jeanette Leech wrote that this album "really marks [Spirogyra] out as a beacon of progressive folk. … Bells, Boots and Shambles bends away from the rockier elements of their first two albums toward weeping classicism and Eno-esque art-house soundtracks". With its "sense of hopelessness" and "existential angst," it has been described as a forerunner of Joy Division. Although the album sold poorly, it has come to be regarded as "a lost masterpiece".

With Breakfast in America, Supertramp had a genuine blockbuster hit, topping the charts for four weeks in the U.S. and selling millions of copies worldwide; by the 1990s, the album had sold over 18 million units across the world. Although their previous records had some popular success, they never even hinted at the massive sales of Breakfast in America. Then again, Supertramp's earlier records weren't as pop-oriented as Breakfast. The majority of the album consisted of tightly written, catchy, well-constructed pop songs, like the hits "The Logical Song," "Take the Long Way Home," and "Goodbye Stranger." Supertramp still had a tendency to indulge themselves occasionally, but Breakfast in America had very few weak moments. It was clearly their high-water mark.

Peter Gabriel is the second studio album by the English singer-songwriter Peter Gabriel, released on 2 June 1978 by Charisma Records. Gabriel started recording the album in November 1977, the same month that he had completed touring in support of his debut solo release. He employed former King Crimson guitarist Robert Fripp, who was part of Gabriel's early touring band, to produce the album. Fripp used his Frippertronics effects on the co-written song "Exposure". The album's cover artwork by Hipgnosis led to it becoming known as Scratch to differentiate it from Gabriel's other eponymously titled albums. Some music streaming services refer to it as Peter Gabriel 2: Scratch. The album reached No. 10 on the UK Albums Chart and No. 45 on the US Billboard Pop Albums chart.

Having made several changes in their business and musical efforts in 1972, Grand Funk Railroad made even more extensive ones in 1973, beginning with their name, which was officially truncated to "Grand Funk." And keyboardist Craig Frost, credited as a sideman on Phoenix, the previous album, was now a full-fledged bandmember, filling out the musical arrangements. The most notable change, however, came with the hiring of Todd Rundgren to produce the band's eighth album. Rundgren, a pop/rock artist in his own right, was also known for his producing abilities, and he gave Grand Funk exactly what they were looking for: We're an American Band sounded nothing like its muddy, plodding predecessors. Sonically, the record was sharp and detailed and the band's playing was far tighter and more accomplished.

"Of all David Bowie's many distinctive personae, none have done more to lodge this most ingenious of British artists in the world's consciousness than his 1972 amalgam of the alien visitor and Christ-like rock star: Ziggy Stardust. Cheap glamour, spacemen and ambiguous sexuality surface throughout the loosely conceptualised collection that is The Rise and Fall of Ziggy Stardust and the Spiders from Mars. If its premise sounds faintly ludicrous, then inspired and dramatic songs such as "Starman" and "Five Years" dispel all doubts about Bowie's genius, and the theatrically tragic "Rock 'n' Roll Suicide" brings the album and it's fictional protagonist to a close. As a cultural and musical signpost, Ziggy Stardust points simultaneously backwards to early rock & roll and forward to the simpler, tougher inclinations of late-1970s punk and New Wave rock. As one of the defining rock albums of the 20th century, its influence is immeasurable."

E Pluribus Funk is Grand Funk Railroad's fifth studio album and was released in November 1971 by Capitol Records. Like previous Grand Funk Railroad albums, it was recorded at Cleveland Recording Company and is the final album produced by Terry Knight. The title is a play on the former motto of the US government, E pluribus unum. The original release cover (designed by Ernie Cefalu) was completely round and covered with a silver-like film to resemble a large coin. The back side of the cover of this album included a die cast picture of Shea Stadium to celebrate Grand Funk beating The Beatles' Shea Stadium attendance record by selling out in just 72 hours.

Peter Gabriel is the debut studio album by the English singer-songwriter Peter Gabriel, released in February 1977 by Charisma Records. After his departure from the progressive rock band Genesis was made public in 1975, Gabriel took a break to concentrate on his family life. In 1976, he began writing material for a solo album and met producer Bob Ezrin, who agreed to produce it. Gabriel hired several additional musicians, including guitarist Robert Fripp and bassist Tony Levin. The album was later known as Peter Gabriel I or Car, referring to the album's artwork produced by Hipgnosis. Some music streaming services, including Gabriel's own Bandcamp page, refer to it as Peter Gabriel 1: Car. Peter Gabriel reached No. 7 on the UK Albums Chart and No. 38 on the US Billboard 200. It is certified gold in both countries.

Baker Gurvitz Army were an English rock group. Their self-titled debut album featured a blend of hard rock laced with Ginger Baker's drumming. The lengthy "Mad Jack" was that album's outstanding track, and the album hit the US Billboard 200 chart, and peaked at number 22 in the UK Albums Chart. The two following albums contained similar material, although neither charted in the UK nor the US.

Spirogyra are a British folk/prog band that recorded three albums between 1971 and 1973, with further original albums in 2009 and 2011. Old Boot Wine was the bands second studio album originally released in 1972. Martin Cockerham and Mark Francis originally formed Spirogyra as a duo in Bolton, Lancashire in the summer of 1967. But when Martin went to the University of Kent at Canterbury in 1969 he expanded the band to include fellow students Barbara Gaskin, Steve Borrill, and Julian Cusack. The album was produced by Max Hole and released on B&C's subsidiary imprint, Pegasus Records. This album showcased the group "with their rough edges removed and a slicker almost commercial sound", yet it is generally less well-regarded than their other releases. Part of the sound change owed to the reduced presence of violinist Julian Cusack, who had returned to university, and the return of original co-founder Mark Francis.

Roxy Music followed up their stunning debut with ‘For Your Pleasure’, an album that’s come to be regarded by many as the ultimate musical expression of Roxy Music’s early period. For this record the band found the freedom to develop the songs along experimental lines in the studio, resulting in an immensely satisfying musical statement. Added to Bryan Ferry’s alternately seductive and dystopian imagery, Eno’s other-worldly synth sounds and tape loop effects were propelled by the virtuoso musical powerhouse of Andy Mackay, Phil Manzanera and Paul Thompson. Ultimately, the sum of these parts continues to earn ‘For Your Pleasure’ a place in many ‘Best Albums Of All Time’ listings and its music is as timeless and fresh today as first heard back in 1973.

Crime of the Century is the third studio album by the British rock band Supertramp, released in October 1974 on A&M Records. Crime of the Century was Supertramp's commercial breakthrough in many countries, most notably in the UK, Canada and Germany where it peaked in the Top 5 while also making the Top 20 in Australia and France. It was the band's first album to chart in the United States, reaching No. 38 on the Billboard 200. The single "Dreamer" reached No. 13 on the UK singles chart, but listeners in the United States preferred its B-side, "Bloody Well Right", which peaked at No. 35 on the Billboard Hot 100. "School" was another popular track, particularly on album rock-oriented radio stations. The album was eventually certified Gold in the US in 1977 after the release of Even in the Quietest Moments…. In Canada, it was eventually certified Diamond (sales of one million copies). The album was Supertramp's first to feature drummer Bob Siebenberg (at the time credited as Bob C. Benberg), saxophone and clarinet player and vocalist John Helliwell, bassist Dougie Thomson, and co-producer Ken Scott. The album has received critical acclaim, including its inclusion in Rolling Stone's "50 Greatest Prog Rock Albums of All Time".

After the freakish hard rock of The Man Who Sold the World, David Bowie returned to singer/songwriter territory on Hunky Dory. Not only did the album boast more folky songs ("Song for Bob Dylan," "The Bewlay Brothers"), but he again flirted with Anthony Newley-esque dancehall music ("Kooks," "Fill Your Heart"), seemingly leaving heavy metal behind. As a result, Hunky Dory is a kaleidoscopic array of pop styles, tied together only by Bowie's sense of vision: a sweeping, cinematic mélange of high and low art, ambiguous sexuality, kitsch, and class. Mick Ronson's guitar is pushed to the back, leaving Rick Wakeman's cabaret piano to dominate the sound of the album.

An obscure footnote of early-'70s British art rock, Khan featured guitarist Steve Hillage, keyboardist Dave Stewart, and ex-Crazy World of Arthur Brown bassist Nick Greenwood. Their sole album from 1972 was dominated by Hillage's lengthy, ambitious compositions and Stewart's organ, which owed much to the Canterbury Scene of British prog rock. The group didn't offer much to distinguish themselves from the many other British outfits exploring similar territory, and disbanded after one LP. Hillage went on to join Kevin Ayers and Gong before establishing a solo career; Stewart played with Hatfield & the North and National Health.

I Can See Your House from Here is the seventh studio album by English progressive rock band Camel. Released in 1979, a new line up was introduced with founding members Andrew Latimer (guitar) and Andy Ward (drums) joined by bassist Colin Bass (to replace Richard Sinclair) and keyboardists Jan Schelhaas (who joined in 1978 for the Breathless tour) and Kit Watkins (ex-Happy The Man) who replaced Dave Sinclair. At one point, the album was going to be called Endangered Species.

British prog rock act Skin Alley were a farsighted collaboration between Thomas Crimble (keyboards/bass/vocals), Alvin Pope (drums), Krzysztof Henryk Justkiewicz (keyboards), and Bob James (sax/guitar). Formed in the late '60s, they made inroads quickly and found themselves signed to CBS for their self-titled debut in 1969. That album, and its 1970 follow-up, To Pagham & Beyond, saw the band in top prog form – a pastiche of folk, jazz, and rock that, although well traveled by this time, managed to delight more than a few critics with its freshness and vitality. Crimble and Pope moved on later that year and were replaced by Nick Graham (formerly of Atomic Rooster) and Tony Knight (ex-Bronx Cheer), respectively. With new members in place, Skin Alley's sound took on a more polished, mainstream approach and began prominently featuring the complex string, woodwind, and brass arrangements of Graham. Their jazz-rock fusion sound was still there, but with decidedly more polish and sophistication.