Half of it is somebody else's afternoon
A calm field of quarter-circles stops dead at a torn vertical seam and an unrelated block of stripes starts, which is what a household copy looked like after somebody recorded over it.

One wide rectangle, split by a hard vertical seam about three-fifths of the way across. On the left, large flat quarter-circles interlocking in black, chalk white and a cold blue. On the right, an unrelated block of even horizontal bands. Down the seam itself, a narrow torn column.
Nothing on the left has anything to do with anything on the right, and the tear is the whole of the warning anyone got.
What is the line down the middle?
Not a border. An event.
A border separates two things that were laid out together by somebody who could see both. This seam is the instant one recording stopped being what it was and an unrelated one began. The quarter-circles run into it mid-shape, sliced through the middle of a curve, and the bands on the other side start mid-pattern rather than at the top of anything. There is no transition of any kind, because nothing in the machine was capable of making one.
Which is why the print has to be one rectangle rather than two panels with a gap. A gap would read as a comparison. Continuity across the seam is what makes it a single object with two things in it.
Why is the join torn instead of clean?
Because a machine asked to start writing in the middle of a tape that already has something on it takes a moment to lock on, and that moment gets written down along with everything else.
The head has to find the existing track, match its own timing to it and then take it over. For the length of that handover it is neither reading the old recording properly nor laying the new one down cleanly, and what comes back is a ragged column of both at once. On this print it is wider than a hairline — closer to a stripe in its own right, which is the correct proportion. Drawn as a thin rule it would look like a design decision. Drawn wide, it reads as the failure it is.
How does half a recording get lost by accident?
Somebody picked up the nearest cassette and pressed record without reading the case.
The household had two defences against that and both were manual. One was a small plastic tab on the shell that could be snapped off, after which the machine refused to record on that tape at all. The other was a paper strip down the edge of the case with a name on it. A tape with neither was fair game, and there were more tapes with neither than with both, because both took a deliberate minute at a moment when nobody was thinking about next year.
Does anything on this shirt belong to somebody else?
Nothing here does, and that is a design decision rather than a lucky outcome.
Neither side of the seam depicts anything. Two abstract fields — curves against stripes — carry the entire argument, so no film appears on the garment, no frame is traceable and nothing is quoted. The work is somebody's; what happened to your copy of it is yours. Titles, artwork and performances are licensable, and if a real one is genuinely the point of what you are making then getting permission is part of the job. If it is not the point, an invented pair of fields does the same work and does not turn into the shirt a thousand other people already own. Style has no owner. A work does.
Does it work for something other than a tape?
It works for anything that got written over by something with no connection to it.
A whiteboard wiped for a different meeting, a saved position in a game somebody else was playing, a document one person kept editing over another's afternoon. The design holds because the two fields are abstract: swap the curves for something else and the seam still does the same job. As a gift it lands where two people share the story, and it lands badly where one of them is being blamed for it.
Isn't a mistake a strange thing to put on a chest?
It was not a catastrophe and it was not rare.
Losing half a film to somebody else's afternoon was an ordinary Tuesday in a house with one machine and a limited supply of tapes. Nobody rang anybody. What the household ended up owning was a film it had in parts, and it went on watching that version for years — up to the seam, then off, or up to the seam and then whatever the rest of it had become. Wearing that is not a confession. It is a fact about a shared object.
Does it print well?
Very well. This is flat colour with hard edges, which is what fabric handles most reliably.
Three inks on a grey ground: dense black, chalk white and a cold desaturated blue, all sitting as solid shapes with no soft transitions anywhere. The horizontal bands want even weight and generous spacing — bands packed closer than the weave can separate will close up into a solid block at any distance.
The one hard rectangle here is doing real work rather than framing a picture, since the rectangle is the recording. The tear is the risk: crumbly fine speckle drops below the floor of the weave and fills in, so it wants fewer, larger, more deliberate fragments than the real thing has.
How do I get one made?
Describe the two fields at JustOG — what is on each side, where the seam falls, how wide the tear is. Pick a direction, drag the crop frame, see it composited on the real garment, and it's made to order and shipped.
Designs other people have published are in the shop.
Half of that tape is still somebody's afternoon, and nobody in the house ever worked out whose.