Day 9 · Thursday 10 September 2026 · RTA 307

Build II — Polish

Feature freeze at 10:00. Today is not for more — it is for better: playability tuning, sound design, the instrument's face, its documentation, and a real soundcheck. Tomorrow you perform.

10:00 feature freeze · tuning 12:00 cross-testing 14:00 documentation 15:30 QR posters 16:00 soundcheck + running order 17:00 end
By the end of today

10:00 — Feature Freeze, Then Tuning

The Day 7 spec named your cut-line; this is the morning you honour it. Whatever doesn't work at 10:00 gets fixed or cut — nothing new gets added. Then tune, against the Day 6 checklist, in this order:

  1. Immediacy — any perceptible lag between gesture and sound? Hunt it down (usually: heavy work inside draw(), or an attack envelope slower than you think).
  2. Ranges — do the extremes of every mapping sound good? A theremin that can screech at 8 kHz will, in a stranger's hands, only screech. Clamp with constrain(); taste is mostly range-setting.
  3. Silence — does the instrument stop cleanly when hands leave? Clicks on release are envelope problems: give every stop a few milliseconds of fade.
  4. Loudness — level-match against the other five projects; soundcheck will confirm through the monitors.

12:00 — Cross-Testing

Swap phones around the room until every instrument has run on at least one Android and one iOS device — the eels differ per platform, and better to meet them today than at 15:00 tomorrow. Then the harder swap: trade instruments and say nothing. Watch a colleague meet yours cold. Ninety seconds. That is the 30-second-stranger test with a stopwatch on it; what confuses them gets one fix each, this afternoon.

14:00 — Documentation (Half of A3)

Per project, due before the show
  1. The live URL — the instrument itself, deployed and public. The lasting artifact: the workshop ends, the URL doesn't.
  2. A short video (60–120s) — phone-shot is fine: hands, screen, and sound, showing the mapping legibly. Shooting-brief: film in the quietest twenty minutes you can find, real audio, no music bed over the instrument.
  3. One page — the instrument's name; the "you ______, it ______" sentence; the final mapping table (as built, not as dreamed); what changed since concept lock and why; what you'd build in week three.
  4. Timestamps throughout, per the house rule: when recorded, when shot, when deployed — to the minute where known. Your daily log sentences from Days 8–9 slot straight in here.

15:30 — QR Posters

One A4 per instrument for the show's wall: the instrument's name, the players, and a large QR to the live URL — made with the QR tool (it has a print button). The audience plays your instrument on their own phones minutes after seeing it performed. Design the poster like it belongs to the instrument — same face, same type spirit.

16:00 — Soundcheck and Running Order

  1. Cabled acts: phone → 3.5mm/USB-C dongle → mixer → monitors. Set gain per act; mark levels; note who needs which dongle and tape it to the running order.
  2. Speaker acts (distributed/ensemble pieces): position the phones in the room, walk the audience path, listen from where they'll sit — six phone speakers around a room is a spatial instrument no mixer gives you.
  3. Running order by 16:45, printed: act, players, cable or speakers, one-line intro, who resets the room after. Ensemble piece — if the cohort has one — closes.
Tonight

Finish the one-pager. Charge the phone. Charge the backup phone. Do not refactor anything after 21:00 — tonight's clever idea is tomorrow's silent instrument, and the version that works is the version that performs.

Day 8← Build I