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Week 8 Studio: Pattern and seed

Giving a hand a control to choose among a family of variations, deliberate rather than accidental, instead of one fixed result

12 April 2027

Before the studio

Bring an instrument that behaves identically every time it runs. Today it learns to vary on purpose, and gives a hand a way to choose the variation.

In the studio

Wire a seeded random source into one part of the instrument — where the next mark starts, how a constraint bends, what a decayed state regenerates into — and give a hand a control that moves between seeds, not just a viewer who can read the number off a corner of the screen. The discipline here is narrow: “random” and “unpredictable to me right now” are not the same thing, and an instrument that can’t reproduce its own output on request is much harder to debug, let alone exhibit. Two runs with the same seed should be identical down to the pixel; that’s the test, not a vibe check. But the point isn’t reproducibility for its own sake — it’s that choosing a new seed should feel like choosing a different mark, not spinning a wheel of pure noise.

Afterwards

Hand your instrument to someone and let them move through three seeds without touching anything else. Ask which one they’d pick to show, and why. If they can’t tell the seeds apart, the variation isn’t visible yet; if none of them feels like a choice worth making, the seed reached everywhere it needed to but the marks don’t diverge in any way a hand would care about.

The spec

What you bring to the session. Written so a reader can tell whether it has been met without asking you.

Teaching team