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Subject Matter Records

Subject Matter Records is the archive of Janko Bartelink. That's me. I set it up in 2022 in Twente, to keep everything I've made since my first blackbook in 1993: electro as Hadamard, ambient as Janko Bartelink, improvised music in Einder, graffiti as Janko and before that as Sewa. Paintings, video, software. And a few names I used only once or twice.

There are 87 files in it. You can look through all of them, though some show more than others.

The office of archivist is held by two persons, a human and a machine, signing as one.

Now and then I dispatch copies of something in the archive. Those you can order. Sound goes through Bandcamp.

The catalogueThe register

IKENO, cover
Newest dispatch

IKENO

HadamardTransmitted MatterSMR-005

Dispatched

Started in 2023, finished on 26-09-2026.

Open the filePurchase a copy

Sources

  • HadamardElectronic music. Records forwarded from elsewhere; the source keeps its own logs.
  • Janko BartelinkAmbient music, recorded.
  • JankoWalls. Graffiti, dispatched as photographic documentation.
  • EinderImprovised experimental music. Bandcamp only.
  • ShakesTrains. Graffiti on rolling stock, dispatched as photographic documentation.
  • Navier StokesVideo. Fluid simulations rendered as animation, made with electronic music.
  • Janko BartelinkPaintings, drawings, installations and video, held as photographic documentation and videofiles. The archive itself is filed here.
  • SewaBlackbooks. Graffiti on paper, held as photographic documentation.
  • RiemanSketches. Graffiti on paper, held as photographic documentation.
  • PoisonTrains. Graffiti on rolling stock, held as photographic documentation.

Register

Full register
  1. [DATE]HAD/32Dispatched as SMR-005. Twelve records from a station 6 AU from a magnetar, forwarded in full.
  2. 01-10-2026Declassified. JAN/01–04: a sketch and the blackbooks, public in 2023; two walls, painted in public in 2025 and 2026.
  3. 01-10-2026Accessioned. JMB/01–37: photographic documentation and videofiles of 37 holdings, 2000 to 2023, from accession 2026.1.

Bulletins

When I dispatch something, take something in or change the rules, I write a bulletin. Sign up and you get them by mail. The bulletins so far.