Mark Slater’s creative-production practice · est. 2013
The practice
The moment before a medium
Crowded Mind is Mark Slater’s creative-production practice, and the name of the company he founded in 2013. It is built around one conviction: an idea arrives before its medium does. For a while, the same fragment could still become a film, a book, a song, a photograph, an artwork or a performance — and each of those futures would keep something the others give up.
Today, Crowded Mind is an umbrella around Mark’s work across composition, writing, visual culture, technology and production. The finished work may live elsewhere; this is the place where its possible forms are held together long enough to choose well.
The forms explored here — film, books, music, photography, art and theatre — are examples, not the edges of the practice. They are different notations an idea might ask for.
the whole company, in one sentence →We produce the idea first, and the medium second.
Study №1 · a conceptual study
The register: one idea, six possible forms
A choir rehearses in an empty station after the last train.
A choir rehearses in an empty station after the last train.A choir rehearses in an empty station after the last train.A choir rehearses in an empty station after the last train.A choir rehearses in an empty station after the last train.A choir rehearses in an empty station after the last train.A choir rehearses in an empty station after the last train.
Choose the form it takes.
Below: the same study in all six of its possible forms.
Arrow keys move between forms; number keys 1 to 6 choose a form directly; 0 or Escape returns to undecided, showing all six documents.
ScreenplayFIRST DRAFT — UNPRODUCED
AFTER THE LAST TRAIN
INT. RAILWAY STATION, CONCOURSE — NIGHT
The departures board has gone blank. A cleaner’s trolley stands abandoned by the barriers.
Somewhere past the ticket hall, a single voice finds a note and holds it. Another joins. Then forty.
The sound climbs into the iron roof and stays.
✳ Film gives the idea duration — a night that must be lived through in order.
Book proofUNCORRECTED — NOT FOR SALE
After the Last Train
One
The last train left at 23:41, and the station exhaled. It was the low voice that began it — one note set against the hum of the vending machines — and the others came in the way swimmers enter cold water: one by one, gasping, glad.
By midnight the concourse had forgotten it was ever a place for leaving.
1
✳ A book gives the idea interiority — you are told what the singing is for.
Lead sheetdemo — unreleased
After the Last Train
Freely, ♩ = 63 · E minor
EmG/DAm7
The last train gone, the boards all dark,
CB7sus4B7
we tune ourselves to the vending hum —
EmGC
forty voices in an iron sky.
✳ Music gives the idea pulse — it happens again each time it is sung.
Caption sheetSTUDY — NOT PRINTED
Caption sheet — concourse, night
Roll 3, frames 12–14. HP5+ pushed to 1600. Available light: board off, one service lamp. f/1.4 at 1/30.
12The choir assembling under the blank departures board.
13Conductor’s hand raised; steam from a paper cup.
14The held note — forty open mouths, iron roof above.
✳ Photography gives the idea an instant — one frame that stands for the whole night.
Gallery placardConceptual study — not exhibited
After the Last Train, undated
Sound installation: forty recorded voices, a decommissioned departures board, timetable paper.
Dimensions variable.
✳ Art gives the idea an object — something that goes on standing there without you.
Prompt bookREHEARSAL COPY — UNPERFORMED
AFTER THE LAST TRAIN — SC. 1, THE CONCOURSE
House hum. The departures board flickers out.
LX Q3 — GO
THE CHOIR enters severally through barrier 4, in coats, as passengers who missed nothing.
CONDUCTOR
(raising a hand, to the roof rather than the singers)
Listen. The building is in E.
The note begins before we see who starts it.
SQ 2 — GO
✳ Theatre gives the idea presence — bodies in the room, and the risk that tonight it goes differently.
Study №2 · a conceptual study
Study №2
An orchard is divided between two brothers, tree by tree.
An orchard is divided between two brothers, tree by tree.An orchard is divided between two brothers, tree by tree.An orchard is divided between two brothers, tree by tree.An orchard is divided between two brothers, tree by tree.
Choose the crossing it makes.
Below: four crossings, and what each one finds and loses.
Arrow keys move between crossings. Escape returns the idea to its uncrossed state.
Caption sheetSTUDY — NOT PRINTED
Frame 7 — Two ladders against one apple tree, leaning from opposite sides. Late light. Nobody in frame.
Foundthe image — two ladders, one tree.Lostwhich brother owns it.
Gallery placardConceptual study — not exhibited
The Inventory, undated. 214 numbered brass tags, one orchard map cut in half. Dimensions variable.
Foundthe count — division made physical.Lostthe season.
ScreenplayFIRST DRAFT — UNPRODUCED
EXT. ORCHARD — DAWN. Two men walk the rows with paint. Red marks. White marks. Neither speaks. One tree at the boundary is left unmarked.
Foundtime — the unmarked tree can wait until the last scene.Loststillness.
Book proofUNCORRECTED — NOT FOR SALE
Their father had counted the trees every autumn, and so the number 214 was the only will he needed. It did not divide by two. That was the sentence neither brother said aloud.
Foundthe reason. A book can say the unsaid number.Lostthe light.
How an idea becomes a medium
The idea survives every crossing. The medium is a decision about what to keep.
In every choice, something is lost and something is found.
Studies №1 and №2 are conceptual examples — written to show how the practice thinks, not records of produced work. The real record follows.
The record · verified
What has crystallised
Everything above is written to show how the practice thinks. Everything below is real, listed at its true degree of crystallisation.
Produced
Mars: 1001 · Surround-sound music score
Score for the fulldome film — a theatrical immersive medium — recorded with the City of Prague Philharmonic. One of several fulldome scores since 2013.
An entire world for a near-future Earth living with AI — to become a novel or a media experience. Artwork concepts and postcards from people in the world are ongoing. The register above is not a metaphor.
One entity for creative production across film, books, music, art, photography and theatre.
Practice
Crowded Mind is the creative-production practice of Mark Slater: an umbrella for work that may ultimately live on his composer, writing and development sites.
Locations
London, since 2013. Japan, since 2018. Los Angeles, 2009–2025.
Before 2013
The practice is older than the company — earlier work includes recording with the London Symphony Orchestra.
Set in
Spectral, Courier Prime and Archivo — self-hosted, licensed under the SIL Open Font License.
This site
A statement of the practice. The two numbered studies are conceptual, written for this site; the record above lists real work only.