Drum machine

Oberheim DMX

The DMX arrived as drum machines were moving from electronic approximations toward recorded percussion.

Rhythm takes control →
Oberheim DMX: the sampled drum voices and pattern controls.July 1985 · Electronics & Music Maker / mu:zinesSource & credit ↗

Oberheim introduced the DMX in the early 1980s as a sampled-drum machine built for the working studio. Its pads, patterns and firm recorded sounds gave players an immediate way to put a solid rhythm section into an arrangement.

Sources (44)
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The machine in the record

Pet Shop Boys performing at the Sydney Resolution Concert in 2011.
Pet Shop Boys performing in Sydney in 2011, photographed by Eva Rinaldi. It brings Neil Tennant and Chris Lowe into the story of “West End Girls”; it is not a photograph of the Oberheim DMX or its 1985 session.
Cover artwork for Pet Shop Boys — West End Girls — Stephen Hague re-recording.
Record artwork for Pet Shop Boys — West End Girls — Stephen Hague re-recording; it identifies the release, not the machine or a recording session.

Pet Shop Boys / “West End Girls”.

Stephen Hague identifies the DMX drum tracks in his 1985 version of “West End Girls”, with sampler percussion performed separately. The scope is exact—the Hague version, not the earlier recording—and that precision makes the story stronger.

Read Track Record: West End Girls ↗

More records in the archive

The machine keeps turning up.

New Order performing at the SFX, Dublin, in October 1983.
New Order at Dublin’s SFX in October 1983, photographed by Luke Brehony. It places Stephen Morris and the group in the year of “Blue Monday”; it is not a photograph of the DMX or the recording session.
Cover artwork for New Order — Blue Monday.
Record artwork for New Order — Blue Monday; it identifies the release, not the machine or a recording session.

New Order / Blue Monday

Morris identifies DMX and strongest-level kick programming.

Read Stephen Morris Interview ↗
Trevor Horn performing with The Producers in 2007.
Trevor Horn performing with The Producers in 2007, photographed by Matt Verrill. It identifies Horn in the story; it does not show the 1984 “Dr. Mabuse” session or either drum machine.

Trevor Horn / Propaganda / “Dr. Mabuse”

Trevor Horn recalls programming Propaganda’s “Dr. Mabuse” into an Oberheim DMX alongside a Linn 2, Fairlight and DSX, with the intention of performing the arrangement without recording it to tape.

Read Trevor Horn: Recording ABC, ZTT, Yes, & The Pet Shop Boys ↗
Tom Petty and the Heartbreakers in a 1977 ABC/Shelter Records publicity photograph.
Tom Petty and the Heartbreakers in a 1977 ABC/Shelter Records publicity photograph. It identifies Petty in the Into the Great Wide Open story; it predates the 1991 sessions and does not show an Oberheim DMX.
Richard Dodd at the desk at London's Marquee Studios in 1977.
Richard Dodd at London’s Marquee Studios, 1977, reproduced from the Sound On Sound production feature. It identifies the engineer who describes the DMX workflow; it does not depict the Into the Great Wide Open sessions or an Oberheim DMX.

Tom Petty / Jeff Lynne / Into the Great Wide Open

Engineer Richard Dodd says Into the Great Wide Open was made to a click built from an Oberheim DMX recorded to tape before overdubs, including the demo that became “Learning To Fly”.

Read Classic Tracks: Tom Petty’s “Learning To Fly” ↗
Joseph Run Simmons and Darryl D.M.C. McDaniels of Run-D.M.C. performing at Long Beach Arena in 1984, photographed by Ian Dryden.
Joseph “Run” Simmons and Darryl “D.M.C.” McDaniels performing at Long Beach Arena in December 1984, photographed by Ian Dryden for the Los Angeles Times. Larry Smith’s separate production account identifies the Oberheim DMX on the group’s 1983 debut single; this is not a photograph of that session or machine.
Cover artwork for Run-D.M.C. — Sucker M.C.’s.
Record artwork for Run-D.M.C. — Sucker M.C.’s; it identifies the release, not the machine or a recording session.

Run-D.M.C. / Sucker M.C.’s

Smith directly names Oberheim DMX and recalls retaining shop settings.

Read Larry Smith Q & A: January 2006 ↗
Cover artwork for Malcolm McLaren — Duck Rock.
Duck Rock carries Buffalo Gals into the DMX/DSX story Trevor Horn later recalled; the cover identifies the album, not the machine or a mix variant.

Malcolm McLaren and the World's Famous Supreme Team / Buffalo Gals

Horn identifies DMX/DSX foundation with Supreme Team scratching.

Read Trevor Horn: 25 Years Of Hits ↗
Cover artwork for Run-D.M.C. — Run-D.M.C. (1984 album).
Record artwork for Run-D.M.C. (1984); it identifies the release context for “It’s Like That”, not the machine or a recording session.

Run-D.M.C. / It’s Like That

Smith directly names original DMX and Prophet-5 for this recording.

Read Larry Smith Q & A: January 2006 ↗
Soft Cell circa 1983: Marc Almond and David Ball in a Sire Records publicity photograph.
Soft Cell circa 1983: Marc Almond and David Ball in a Sire Records publicity photograph. It brings David Ball’s Oberheim DMX account into the period of the group’s early albums; it is not a session photograph or proof of a particular machine setup.
Cover artwork for Soft Cell — The Art of Falling Apart.
Record artwork for Soft Cell — The Art of Falling Apart; it identifies the release, not the machine or a recording session.

Soft Cell / The Art of Falling Apart

Ball names DMX among the recording machines.

Read Vintage Synth Trumps with Dave Ball ↗
Cover artwork for Madonna — Holiday.
Holiday gives the DMX story its proper early-Madonna horizon; the sleeve identifies the release, not a complete session map.

Madonna / Holiday

Zarr names DMX in the synchronized Oberheim setup used while arranging and programming Holiday.

Read How Madonna Became Madonna: An Oral History ↗
Cover artwork for Soft Cell — This Last Night in Sodom.
Record artwork for Soft Cell — This Last Night in Sodom; it identifies the album, not the machine or a recording session.

Soft Cell / This Last Night in Sodom

Ball identifies a PPG-and-DMX album setup.

Read Vintage Synth Trumps with Dave Ball ↗
First page of the 1985 International Musician interview with Wayne Hussey of the Sisters of Mercy.
The first page of the 1985 International Musician interview in which Wayne Hussey discusses Doktor Avalanche and the move from TR-808 to DMX for First and Last and Always. It is period documentary context, not a recording-session photograph.

The Sisters of Mercy / First and Last and Always

Hussey says the group used the DMX on the album, with live programming by him and studio programming by Andrew Eldritch.

Read Sister Wayne ↗

Stephen Morris / New Order / Blue Monday

Stephen Morris revisits the Oberheim DMX at the centre of Blue Monday, separating the familiar lost-beat story from what he remembers of the programming.

Read Stephen Morris — A Career in Gear ↗

Reported association

Oberheim Performance System, E&MM January 1984
Oberheim Performance System: period press beside the reported Every Breath You Take machine lead; the source does not settle the exact model or prove a specific session use.

The Police / Every Breath You Take

Producer interview describes an Oberheim drum-box kick.

Read Classic Tracks: The Police — Every Breath You Take ↗
Cover artwork for Malcolm X / music by Keith LeBlanc — No Sell Out.
Malcolm X / music by Keith LeBlanc — No Sell Out: retained artwork identifies the release context, not a machine, session or sound allocation.

Malcolm X / music by Keith LeBlanc / No Sell Out

Credits LeBlanc with Oberheim DMX alongside E-mu Drumulator.

Read Malcolm X – No Sell Out: artist catalogue credits ↗

Reported association

Fatback, Is This the Future? album artwork.
Fatback — Is This the Future? (album): retained release artwork gives the documented machine credit a record-world context; it does not depict the hardware, a session, or an individual track allocation.

Fatback / Is This the Future? (album)

Contemporary review reports Curtis using Oberheim DMX in the context of this album; label retrospective explicitly associates the machine with it.

Read The Brass Bites Back: Fatback, Is This the Future? review, p.29 ↗
Oberheim DMX formerly owned by Stewart Copeland, photographed for Reverb in 2023.
An Oberheim DMX formerly owned by Stewart Copeland, photographed by Reverb in 2023. It makes the machine tangible alongside the 1983 studio profile, but does not identify the unit pictured as the one in that earlier working setup.

Stewart Copeland / The Police / 1983 working setup

A contemporary studio profile places an Oberheim DMX in Stewart Copeland’s electronic-percussion setup.

Read Stewart Copeland, Home & Studio Recording December 1983 ↗
Cover artwork for Steve Roach / Michael Shrieve — The Leaving Time.
Steve Roach / Michael Shrieve — The Leaving Time: retained artwork identifies the release or source-recording context, not a machine, session or sound allocation.

Steve Roach / Michael Shrieve / The Leaving Time

Steve Roach’s release note credits his DMX drum programming within the Oberheim system used for The Leaving Time.

Read Steve Roach / The Leaving Time ↗
Cover artwork for Luke Million — Power Up.
Luke Million — Power Up: retained artwork identifies the release or source-recording context, not a machine, session or sound allocation.

Luke Million / Power Up

Luke Million identifies the Oberheim DMX as the driving beat on “Power Up”, chosen for the particular punch he wanted from the track.

Read Luke Million / Power Up ↗
Cover artwork for Sarama Miraz / Gary Miraz — Sound and Mirrors.
Sarama Miraz / Gary Miraz — Sound and Mirrors: retained artwork identifies the release or source-recording context, not a machine, session or sound allocation.

Sarama Miraz / Gary Miraz / Sound and Mirrors

The Sound and Mirrors credits list Gary Miraz on an Oberheim DMX alongside his synthesizers and samplers.

Read Sarama Miraz — Sound and Mirrors ↗
Cover artwork for Def Leppard — Hysteria.
Def Leppard — Hysteria writing demos: retained artwork identifies the release or source-recording context, not a machine, session or sound allocation.

Def Leppard / Hysteria writing demos

Joe Elliott recalls Def Leppard writing early Hysteria material in Dublin with Fostex four-tracks and Oberheim DMX drum machines.

Read MusicRadar / Def Leppard’s Hysteria writing history ↗
Cover artwork for Virgil Work Jr. — Ease Into It.
Virgil Work Jr. — Ease Into It: retained artwork identifies the release or source-recording context, not a machine, session or sound allocation.

Virgil Work Jr. / Ease Into It

Virgil Work Jr.’s track equipment list names an Oberheim DMX drum machine.

Read Virgil Work Jr. — Ease Into It ↗
Cover artwork for Paradise Is a Frequency — The Style of Life.
Paradise Is a Frequency — The Style of Life: retained artwork identifies the release or source-recording context, not a machine, session or sound allocation.

Paradise Is a Frequency / The Style of Life

Paradise Is a Frequency list the Oberheim DMX drum machine in the record’s instrumentation.

Read Paradise Is a Frequency / The Style of Life ↗
Cover artwork for Ana Frango Elétrico — Me Chama De Gato Que Eu Sou Sua.
Ana Frango Elétrico — Me Chama De Gato Que Eu Sou Sua: retained release artwork gives the documented machine story a record-world context; it does not depict the hardware, a session, or an individual track allocation.

Ana Frango Elétrico / Me Chama De Gato Que Eu Sou Sua

Sérgio Machado is credited with Oberheim DMX on two tracks from Ana Frango Elétrico’s Me Chama De Gato Que Eu Sou Sua.

Read Ana Frango Elétrico — Me Chama De Gato Que Eu Sou Sua ↗
Cover artwork for Telan Devik — Retro Illuminated / Attack of the Synthians.
Telan Devik — Retro Illuminated / Attack of the Synthians: retained artwork identifies the release or source-recording context, not a machine, session or sound allocation.

Telan Devik / Retro Illuminated / Attack of the Synthians

The release’s drum-sample inventory includes a Oberheim DMX.

Read Telan Devik — Retro Illuminated / Attack of the Synthians ↗
Cover artwork for Hunter Complex / Lars Meijer — Dead Calm and Zero Degrees.
Hunter Complex / Lars Meijer — Dead Calm and Zero Degrees: retained release artwork gives the documented machine story a record-world context; it does not depict the hardware, a session, or an individual track allocation.

Hunter Complex / Lars Meijer / Dead Calm and Zero Degrees

Hunter Complex credits an Oberheim DMX on tracks a2, a3 and b5.

Read Hunter Complex — Dead Calm and Zero Degrees ↗
Ariel Rechtshaid in his Burbank, Los Angeles studio.
Ariel Rechtshaid in his Burbank studio, photographed by Ashley Beliveau for Sound On Sound. The feature records his hardware drum-machine practice; the image does not identify the Oberheim DMX in view or a particular recording.

Ariel Rechtshaid / Studio practice

Rechtshaid names an Oberheim DMX among the hardware drum machines he sequences when a project allows him to work outside the computer.

Read Ariel Rechtshaid: Producer and musician ↗
01 // Landmark

Recorded drums with a working surface

The DMX arrived as drum machines were moving from electronic approximations toward recorded percussion. Its owner manual sets out a hands-on system of patterns, songs, overdubbing, quantisation and swing, while the 1983 Oberheim advertisement places it at the centre of a wider connected setup. The point was practical: build a part, adjust it and keep the music moving.

Sources (3)
  1. Open source 1 ↗
  2. Open source 2 ↗
  3. Open source 3 ↗

02 // Landmark

A machine designed to stay in the arrangement

The DMX could be shaped through tempo, erase modes, memory protection and step entry, giving a programmer several ways to move from an idea into a finished sequence. Its physical controls mattered as much as its samples. They let a rhythm feel like something a player did with the machine rather than something a menu generated at a distance.

Sources (2)
  1. Open source 1 ↗
  2. Open source 2 ↗

03 // Landmark

Documented in early-1980s records

Contemporary accounts and participant testimony place the DMX in specific productions and studio worlds, including Larry Smith’s work with Run-D.M.C. and the early electronic transition around Fatback. These sources keep the history grounded in named uses and documented working contexts rather than turning the DMX into a catch-all symbol for the decade.

Sources (3)
  1. Open source 1 ↗
  2. Open source 2 ↗
  3. Open source 3 ↗

04 // Landmark

A drum machine in the band

Wayne Hussey called Doktor Avalanche the Sisters of Mercy’s drum machine. In 1985 he said the group had replaced its TR-808 with a DMX and used the DMX on First and Last and Always, programming it live and with Andrew Eldritch in the studio.

Source (1)
  1. Open source 1 ↗

05 // Landmark

A machine that crossed the room

The DMX did not belong to one scene. Stephen Morris recalls programming a maximum-strength kick for New Order’s “Blue Monday”; Larry Smith names the same machine on Run-D.M.C.’s “Sucker M.C.’s” and “It’s Like That”; and Andrew Hussey describes it as the working drum machine behind First and Last and Always. Those are different records with different disciplines, but together they explain why the DMX reads less like a period accessory than a shared studio language.

Sources (3)
  1. Open source 1 ↗
  2. Open source 2 ↗
  3. Open source 3 ↗

06 // Landmark

From “Buffalo Gals” to “West End Girls”

Trevor Horn recalls building “Buffalo Gals” on DMX and DSX foundations beneath the World’s Famous Supreme Team’s scratching. David Jacobs places DMX drum tracks in Stephen Hague’s re-recording of Pet Shop Boys’ “West End Girls”, while Dave Ball names the machine among Soft Cell’s recording tools. Those are distinct rooms and records, joined by a machine that could hold a pop arrangement together without announcing its method.

Sources (3)
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  2. Open source 2 ↗
  3. Open source 3 ↗

07 // Landmark

A sampled drum machine becomes a cast of characters

Stephen Morris recalls the DMX behind “Blue Monday”; David Jacobs identifies DMX drum tracks on the Stephen Hague recording of “West End Girls”; Larry Smith names the original machine on Run-D.M.C.’s “Sucker M.C.’s” and “It’s Like That”. Trevor Horn then places DMX and DSX beneath “Buffalo Gals”. The detail that matters is the range: the same sampled box carries synth-pop, early rap and a hip-hop record built around scratching.

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  4. Open source 4 ↗

08 // Landmark

The DMX inside a larger studio

Fred Zarr identifies an Oberheim system including DMX and DSX in the “Holiday” setup; Dave Ball names a DMX among Soft Cell’s recording machines; Wayne Hussey remembers the Sisters of Mercy moving from a TR-808 to DMX. Each account puts the machine in a system rather than making it the whole record.

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  1. Open source 1 ↗
  2. Open source 2 ↗
  3. Open source 3 ↗

09 // Landmark

A DMX and a political record

Keith LeBlanc’s artist catalogue credits an Oberheim DMX beside an E-mu Drumulator on Malcolm X’s “No Sell Out”. It is a retrospective equipment credit, not a sound-by-sound reconstruction, but it places the DMX in another early-1980s production language: spoken-word collage, programmed rhythm and the independent studio.

Source (1)
  1. Open source 1 ↗

10 // Landmark

Fatback’s reported DMX

A contemporary review of Fatback’s Is This the Future? reports Bill Curtis using an Oberheim DMX, a connection later repeated by the reissue label. It is an album-level attribution, so the page does not treat it as a track map. It does show how quickly the machine moved into funk as well as pop and hip-hop.

Source (1)
  1. Open source 1 ↗

MUSIC HISTORY

In the market

  • 1983-08: USD 2895 — Manufacturer advertisement: suggested retail. DMX; separate product price in System advertisement Source ↗
  • 1982-06: USD 2895 — US review price. Reviewed instrument; options unspecified Source ↗
  • 1984-01: GBP 1995 — UK current price reported in system overview. DMX; article acknowledges London Rock Shop demonstration Source ↗
  • 1982-07: GBP 1650 — UK buyers-guide price through Argent’s. Standard model; package not specified Source ↗
  • 1985-07: GBP 2975 — UK checklist indicative retail price. Instrument as listed; options not separately specified; dealer prices may be lower Source ↗
  • 1986-01: GBP 2975 — UK checklist indicative retail price. Instrument as listed; options not separately specified; dealer prices may be lower Source ↗
  • 1983-10: USD 2895 — Manufacturer suggested retail price in US magazine advertisement. DMX Digital Drum Machine; adjacent DSX price is a different product Source ↗

On record

  • New Order — Blue Monday. Morris identifies DMX and strongest-level kick programming. Source ↗
  • Pet Shop Boys — West End Girls — Stephen Hague re-recording. DMX drum tracks; separately performed sampler percussion. Source ↗
  • The Police — Every Breath You Take. Producer interview describes an Oberheim drum-box kick. Source ↗
  • Run-D.M.C. — Sucker M.C.’s. Smith directly names Oberheim DMX and recalls retaining shop settings. Source ↗
  • Run-D.M.C. — It’s Like That. Smith directly names original DMX and Prophet-5 for this recording. Source ↗
  • Malcolm McLaren and the World's Famous Supreme Team — Buffalo Gals. Horn identifies DMX/DSX foundation with Supreme Team scratching. Source ↗
  • Soft Cell — The Art of Falling Apart. Ball names DMX among the recording machines. Source ↗
  • Soft Cell — This Last Night in Sodom. Ball identifies a PPG-and-DMX album setup. Source ↗
  • Madonna — Holiday. Zarr names DMX in the synchronized Oberheim setup used while arranging and programming Holiday. Source ↗
  • Malcolm X / music by Keith LeBlanc — No Sell Out. Credits LeBlanc with Oberheim DMX alongside E-mu Drumulator. Source ↗
  • Fatback — Is This the Future? (album). Contemporary review reports Curtis using Oberheim DMX in the context of this album; label retrospective explicitly associates the machine with it. Source ↗
  • The Sisters of Mercy — First and Last and Always. Hussey says the group used the DMX on the album, with live programming by him and studio programming by Andrew Eldritch. Source ↗
  • Stewart Copeland / The Police — “Every Breath You Take” and solo work. A published report associates the Oberheim DMX kick with “Every Breath You Take” and says Copeland’s offered DMX appeared on solo projects. Source ↗
  • Stephen Morris / New Order — Blue Monday. Stephen Morris revisits the Oberheim DMX at the centre of Blue Monday, separating the familiar lost-beat story from what he remembers of the programming. Source ↗
  • Steve Roach / Michael Shrieve — The Leaving Time. Steve Roach’s release note credits his DMX drum programming within the Oberheim system used for The Leaving Time. Source ↗
  • Luke Million — Power Up. Luke Million identifies the Oberheim DMX as the driving beat on “Power Up”, chosen for the particular punch he wanted from the track. Source ↗
  • Sarama Miraz / Gary Miraz — Sound and Mirrors. The Sound and Mirrors credits list Gary Miraz on an Oberheim DMX alongside his synthesizers and samplers. Source ↗
  • mmWave — Plastic Crosstalk. mmWave writes that an Oberheim DMX was used on every track of Plastic Crosstalk. Source ↗
  • Pleasure Victim — Cosmic Dance. Pleasure Victim’s liner note for “Cosmic Dance” says the track used an Oberheim DMX. Source ↗
  • Moot Booxlé — Deep Integration. Moot Booxlé’s track notes credit an Oberheim DMX for drums on “Seq 2”. Source ↗
  • Def Leppard — Hysteria writing demos. Joe Elliott recalls Def Leppard writing early Hysteria material in Dublin with Fostex four-tracks and Oberheim DMX drum machines. Source ↗
  • Virgil Work Jr. — Ease Into It. Virgil Work Jr.’s track equipment list names an Oberheim DMX drum machine. Source ↗
  • Paradise Is a Frequency — The Style of Life. Paradise Is a Frequency list the Oberheim DMX drum machine in the record’s instrumentation. Source ↗
  • Ana Frango Elétrico — Me Chama De Gato Que Eu Sou Sua. Sérgio Machado is credited with Oberheim DMX on two tracks from Ana Frango Elétrico’s Me Chama De Gato Que Eu Sou Sua. Source ↗
  • Telan Devik — Retro Illuminated / Attack of the Synthians. The release’s drum-sample inventory includes a Oberheim DMX. Source ↗
  • Hunter Complex / Lars Meijer — Dead Calm and Zero Degrees. Hunter Complex credits an Oberheim DMX on tracks a2, a3 and b5. Source ↗

In the studio and on stage

  • Stewart Copeland / The Police — 1983 working setup. A contemporary studio profile places an Oberheim DMX in Stewart Copeland’s electronic-percussion setup. Source ↗
  • Ariel Rechtshaid — Studio practice. Rechtshaid names an Oberheim DMX among the hardware drum machines he sequences when a project allows him to work outside the computer.

Sources

  1. DMX Owner’s Manual, third edition
  2. The Oberheim System advertisement
  3. DMX and DSX advertisement finding aid
  4. Product History: DMX
  5. DMX Service Manual
  6. Innovation Driver: Interview with Marcus Ryle
  7. DMX Revision 4 Owner’s Manual Addendum: MIDI / Memory Expansion
  8. Programmable Rhythm Machines, part 2
  9. Stephen Morris Interview
  10. Stephen Morris — A Career in Gear
  11. Recreating New Order's Blue Monday Live
  12. Track Record: West End Girls
  13. West End girls — official single discography
  14. Classic Tracks: The Police — Every Breath You Take
  15. Larry Smith Q & A: January 2006
  16. John Who? — first Run-D.M.C. mention, reproduced in Village Voice archive
  17. The Oberheim DMX — voice cards and memory expansion advertisement
  18. The DMX Files — dated development and repair news
  19. Trevor Horn: 25 Years Of Hits
  20. Buffalo Gals: Official Singles Chart history
  21. Trevor Horn: Recording ABC, ZTT, Yes, & The Pet Shop Boys
  22. Oberheim Performance System
  23. Oberheim DX
  24. Vintage Synth Trumps with Dave Ball
  25. Making hits in the 80s with Madonna and Debbie Gibson
  26. Interview: Curtis Hudson & Lisa Stevens, Songwriters of Madonna’s Holiday (Part 1)
  27. How Madonna Became Madonna: An Oral History
  28. Holiday — official discography
  29. Madonna — official album discography
  30. Drum Machines Buyers Guide
  31. Drummers’ Delight: Keith LeBlanc
  32. Malcolm X – No Sell Out: artist catalogue credits
  33. No Sell Out: Tommy Boy TB840 A/B label photographs
  34. Jim Aikin April1983 Keyboard System review: excerpts reproduced by Retro Synth Ads
  35. Doctor Click: Rhythm Controller
  36. Electronic Percussion Checklist
  37. Electronic Percussion checklist
  38. The Oberheim System advertisement, Musician October1983, PDF p9
  39. Stewart Copeland, Home & Studio Recording December 1983
  40. The Brass Bites Back: Fatback, Is This the Future? review, p.29
  41. Fitzroy speaks with Bill Curtis of The Fatback Band In 2012
  42. Fatback: The Last Of The Great Dance Bands
  43. Is This The Future? — Southbound CDSEWM 058
  44. Sister Wayne

The visual archive

Further visual evidence.

These displayed records are labelled by their documented role, date and source; source-only records are listed separately below.

Sources for images shown earlier (28)
Additional visual sources (20)

Original publications and related image sources.

Machine Museum image viewer

Period image shown in the dossier.