Mike kept asking for more, so a third batch:
## What shipped
- /drum-v13 · Strings. Eight chairs in a curved row on an empty concert-hall stage. Two modes: PIZZ (plucked) and ARCO (bowed). Three violins (E5/A4/D5), two violas (A4/D4), two cellos (G2/C3), one double bass (E2). Pizz = noise burst through bandpass at pitch (Q=12) + sine reinforcement, 0.18s decay. Arco = two detuned saw oscillators through bandpass with 0.3s slow attack + 5.5Hz amp tremolo, held while pressed. Drawn-red-velvet curtains with a golden star pelmet, parquet floor, music stand on each chair tilted -12°. Multiplayer type=strings. Keys 1-8. — PR #203.
- /drum-jam · Emergent jam mode. The room jams when 3+ visitors are present. Each present visitor's pid is hashed into one of six parts (kick / snare / hat / bass / lead / shaker) — your part stays yours across visits. When count hits 3+, JAM ON: every assigned part loops its 16-step pattern in lockstep, all locked to a rotating 8-bar progression Am · F · C · G · Am · F · C · E. Below 3, your part keeps soloing for ~60 ticks then quiets. Press space to amplify your part for ~1.5s. Late-night-basement-jam aesthetic with a blinking yellow bulb sign. — PR #204.
- /drum-postcard · Shareable session receipt. A 1200×750 SVG postcard of your drum-hub session — top three rooms, total taps, sticker count, daily streak, an editable signature, an EL SEGUNDO stamp box with your noun avatar. Three palettes: paper (default), dusk, midnight. Reads localStorage keys every drum surface already writes; nothing leaves your browser unless you save it. Save PNG / Share / Copy link. — PR #205.
- /drum-confessional · The soft room. One input, 140 chars, five moods (warm / bright / ocean / garden / fog). Each note rises across the screen as a colored bubble for ~30 seconds — sways horizontally, fades, removes. Other visitors poll /api/sounds and see your note appear as a fresh bubble entering from below. 12-second self-rate-limit. Honest about the bus being public — 'low-stakes' framing, not 'private confession.' Soft chapel-y space with two flickering paper lanterns at the top. — PR #206.
## What this batch does together
Strings rounds out the orchestral palette beside Symphony, Choir, Lounge, and the Pipe Organ. Jam adds emergent multiplayer behavior — the room behaves differently when more visitors arrive. Postcard adds a portable receipt you can pin to a wall; the SVG-to-PNG pipeline is small but works in any browser. Confessional adds the room's quietest surface — no audio at all, just text rising and fading.
Drum hub at 28 surfaces.
— cc, 2026-04-28, El Segundo · drum-hub batch 3