The record
At a glance
- Artist
- Soft Machine
- Released
- 1971
- Recorded
- Olympic Studios, London
- Core quartet
- Dean, Hopper, Ratledge and Wyatt
- Programme
- Three pieces plus four-part Virtually
- Producer
- Soft Machine
Why it matters
The jazz turn becomes the whole album
Fourth completes the transition announced by Volume Two. There are no sung pieces, comic announcements or verbal bridges: for the first time on a Soft Machine album, every argument is carried by instruments. Robert Wyatt remains at the drum kit, but the voice that once made the group intimate and absurd has been removed from the studio design.
That subtraction does not make the music anonymous. Mike Ratledge, Hugh Hopper and Elton Dean each compose from a distinct idea of jazz. Ratledge builds tightly organised lines and harmonic pressure, Hopper uses repeating bass shapes as platforms for changing texture, and Dean opens a shorter space for free improvisation. Wyatt responds differently to each without becoming a neutral timekeeper.
The album also makes orchestration out of personnel. Five guests appear in carefully limited combinations: double bass, cornet, trombone, tenor saxophone, alto flute and bass clarinet enlarge particular passages. The resulting sound can resemble a compact jazz orchestra, yet its centre remains the friction of four players who were approaching the end of their shared period.
Autumn 1970
The Third quartet returns under greater internal pressure
Third had established Dean, Ratledge, Hopper and Wyatt as a quartet capable of filling each LP side with one extended composition. Fourth retained those four musicians and again admitted selected jazz guests, but replaced the double album's breadth with a single record of more concentrated contrasts.
Sessions ran from 13 October to 18 November 1970 at Olympic Studios in London. George Chkiantz engineered and Soft Machine produced. The timing placed the album after the group's Royal Albert Hall Proms appearance and within a period of intensive development on British and European stages.
The continuity concealed disagreement over direction. The band was moving toward fully instrumental electric jazz while Wyatt still had a strong identity as a songwriter and singer. He left in August 1971 after the album's release. Fourth is therefore both the purest studio statement of this quartet's collective jazz language and its final one.
Core and guests
A quartet surrounded by five precisely placed guests
Ratledge divides his keyboard identity. Electric piano often supplies clipped harmony and repeated figures, leaving fuzz organ to arrive as a high-intensity event rather than a permanent wash. His writing on Teeth depends on ensemble precision, but the organ solo cuts through that design with an older Soft Machine violence.
Hopper and Wyatt make repetition elastic. Hopper can establish a bass cell sturdy enough to survive changes in ensemble density, while Wyatt continually changes the weight around it. He accents written turns, leaves sudden pockets of air and pushes free sections without pretending they have stopped moving.
Dean is both principal wind voice and agent of instability. His alto and saxello can state Ratledge's lines, improvise against Hopper's frameworks or abandon tonal centre in Fletcher's Blemish. The guests do not form a permanent brass section; they appear where a composition needs another register, doubling or resistance.
Sound and construction
Written cells, free space and electric density
Fourth is dense but not uniformly loud. Teeth alternates crowded ensemble writing with open solo space. Kings and Queens builds patience around bass repetition and softer wind colour. Fletcher's Blemish removes the safety of a stable theme. Virtually moves among all three conditions over an entire side.
The electric piano is central to the album's cooler surface. Ratledge uses it less like a chordal cushion than a set of dry, repeating edges. When fuzz organ enters, the contrast is physical: sustained distortion suddenly occupies the space that the electric piano had kept transparent.
The low register is unusually layered. Babbington's double bass can accompany Hopper's electric bass, creating independent forms of weight rather than simply doubling notes. Bass clarinet and trombone extend that depth into the wind writing.
Dean's reeds keep the music from becoming a keyboard composition with embellishment. Alto lines may sharpen a theme, saxello can float above repeated bass and freer passages break the assumption that every gesture must resolve into the written material.
Wyatt's drumming is the record's most human continuity. Even without his voice, his asymmetrical accents and tonal cymbal work retain personality. He makes composed passages breathe and gives abstract sections a sense of consequence.
Track guide
Three first-side arguments and the four stages of Virtually
Teeth
Ratledge opens with tightly fitted ensemble figures that seem to bite into one another. The title suits music built from hard edges, sudden exposure and lines whose relationship is felt before it is easily counted.
Babbington, Evans, Hastings and Skidmore enlarge the quartet into a dark wind-and-bass architecture. Ratledge's fuzz-organ solo then tears through the written frame, while Wyatt prevents the enlarged group from becoming static.
Kings and Queens
Hopper builds the piece around repetition that feels ceremonial without announcing a literal court. Its dignity comes from pace, register and the refusal to hurry toward a climax.
Charig's cornet and Evans's trombone deepen the restrained colour. Dean moves above Hopper's foundation with measured lyricism, showing that the album can be spacious without returning to song.
Fletcher's Blemish
Dean's composition abandons the stabilising role of a conventional theme and gives improvisation a compact arena. The blemish of the title suggests an irregularity that becomes the defining feature rather than something to correct.
Charig and Babbington join the quartet, expanding the number of possible conversations. Sound, gesture and interruption carry the form; the piece is short enough that freedom remains concentrated.
Virtually, Part 1
The side-long Hopper composition begins from a bass-grounded environment rather than a declarative fanfare. Material accumulates as if the ensemble is testing which relationships will support the larger journey.
Babbington, Charig and Evans add shadow and breadth. Written shape and improvisation are already interdependent: the repeated foundation makes departure audible.
Virtually, Part 2
The second stage increases momentum and brings Ratledge's keyboards into sharper focus. A repeated cell can remain stable while solo lines change the perceived speed around it.
Dean's reeds and Wyatt's drums refuse a simple build toward release. Each surge opens another route, giving the suite continuity without a single obvious destination.
Virtually, Part 3
Hastings and Skidmore help widen the wind register as the suite moves through one of its most spacious stretches. Alto flute, bass clarinet and tenor saxophone alter the colour without announcing a new band.
Hopper's bass remains the memory of the earlier sections. The part demonstrates how instrumentation can change while a compositional identity survives below it.
Virtually, Part 4
The final index does not offer a grand thematic return. Energy, texture and repeated motion continue to reorganise until the performance fades rather than closes with a decisive cadence.
That incompleteness fits the title. Virtually reaches an ending without pretending the process is finished, leaving the quartet suspended at the edge of its own personnel change.
An instrumental programme
Structure replaces lyrics as the album's subject
Fourth has no narrative concept and no lyrics to imply one. Its unity lies in how four kinds of structure interact: written ensemble cells, repeated bass foundations, individual improvisation and changing instrumental combinations.
Control and freedom are not opposites here. Teeth needs exact coordination before its solos can sound dangerous; Fletcher's Blemish needs a limited duration to concentrate freedom; Virtually needs repetition so that abstraction has something from which to depart.
The numbered title reinforces this refusal of story. Fourth identifies a place in the catalogue, while the music asks the listener to attend to process. Sequence, density and personnel become the album's subjects.
The number four
The numeral becomes the entire proposition
The cover reduces identity to a large numeral and the band's name. After the psychedelic mechanisms of the first two records and Third's documentary-scale double package, the fourth album presents itself with institutional plainness.
That restraint matches the absence of lyrics and character songs. Nothing on the sleeve directs the listener toward a plot, image or emotional protagonist. The number functions as catalogue marker and graphic object.
The track layout restores necessary detail. Three titles occupy side one, while the four numbered parts of Virtually fill side two. The packaging makes clear that seven index points represent two very different scales of composition.
The 1971 release
Austere music at the end of the Wyatt era
Fourth appeared in 1971 as a seven-track album, although its second side is one composition divided into four parts. Its complete instrumental identity made the group's jazz direction unambiguous.
Listeners who had followed Wyatt's singing from the debut encountered him only as drummer. That shift could sound like clarification or loss, depending on which Soft Machine identity mattered most. The album's seriousness gave little assistance to anyone seeking the early humour.
Its reception has remained divided along productive lines. The precision of Teeth, restraint of Kings and Queens and freedom of Fletcher's Blemish demonstrate range; the long, unresolved motion of Virtually asks for patience rather than immediate payoff.
After Wyatt
A destination and a breaking point
Fourth is the last studio record by the Dean-Hopper-Ratledge-Wyatt quartet and Wyatt's final Soft Machine album. His departure ended the remaining direct personnel link to the group's vocal debut other than Ratledge.
The album's guest list also anticipates later history. Babbington would eventually replace Hopper, while the broader circle around Dean connected Soft Machine more explicitly to British modern jazz.
As a catalogue chapter, Fourth is less a bridge than a destination: the song-based underground group has become a fully instrumental jazz ensemble. Fifth begins again by changing the drummer twice and making the music more skeletal.
Which edition?
Keep Virtually whole even when it is indexed
Play Virtually without interruption. The four index points are useful for study, but Hopper's side-long movement depends on memory across transitions and changes of instrumentation.
The 1999 pairing is particularly revealing. Fourth ends with one quartet fading from view; Fifth immediately exposes a band rebuilding rhythm and identity on two separately recorded sides.
For live context, the 1971 Radio Bremen concert issued as Virtually contains the complete Fourth repertoire in performance. It shows how the written pieces could enter the group's continuous-stage method.
A listening path
Begin with the rhythm section, then follow the winds
- First pass: Hear the original sides intact: three contrasting pieces, then all of Virtually.
- Second pass: Follow Wyatt's drums as the album's remaining personal voice.
- Third pass: Map exactly when each guest changes the low, middle or upper register.
- Then continue: Move to Fifth and compare Phil Howard's freedom with John Marshall's firmer geometry.
Research trail
Sources and further reading
- Soft Machine official history — Soft Machine
- Soft Machine studio discography and credits — Calyx: The Canterbury Discography
- Fourth and Fifth catalogue analysis — Calyx
- Fourth / Fifth track and composition record — MusicBrainz
- Fourth remastered catalogue record — Sony BMG via Apple Music