[h1ddenpr0cess20]

What it sounds like

Psytrance in E minor, round Em Em C C Am Am F B. The F sits a semitone above home, which is what makes it sound like the code is wrong.

• The run builds with depth. Kick and a rolling bass off the line. At 100 m the hats, the clap and the "green rain" come in: square-wave plinks, three notes against four beats. At 300 m, pads and data bleeps. At 600 m, the lead.
• An agent muffles the music for a second.
• System failure is a chord outside the key and a saw powering down.
• Between runs it's the pod: the same chords slowed right down, over a heartbeat.

How it works

There are no audio files. src/ui/music.js is a step sequencer. It reads parts written as strings, one token per sixteenth note (e2 - . e3+g3+b3), and plays them on instruments made of oscillators and noise. It runs on the AudioContext that sound.js already builds. src/ui/soundtrack.js is this game's composition. music.js is the same file in all four egg games.

• Nothing before a gesture. sound.js now exposes its context and a wake() method. The first touch or key press anywhere wakes the audio, so the title music can play before the first run.
• Scheduled ahead. Notes are queued ahead on the audio clock. The queue reaches further when frames are slow. After a stall, the missed notes are dropped and playback stays on the beat grid.
• Bar lines. New layers only come in at the start of a bar.
• Mute. M mutes the music, and it keeps time while muted.
• README. It has a new "The soundtrack" section.

Testing

• npm test: 98 pass, including new tests.
  • test/music.test.js runs against a fake AudioContext. It covers staying on the grid, stalls, slow frames, mute, layers entering at bar lines, a one-shot cue handing off to the next, and nodes being disconnected once they finish. The slow-frame test fails without the look-ahead fix.
  • test/soundtrack.test.js checks the composition: whole bars, real instruments, every cue main.js asks for, and a full title → run → over run on the real parts.
• npm run lint is clean, and npm run build succeeds.
• I ran the actual game in headless Chromium. No AudioContext is created before the click, the music plays after pressing play, muting stops new notes, and there were no page errors.

🤖 Generated with Claude Code

https://claude.ai/code/session_01GMNb8MBDZFeHduLGsa6wYH

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Generated by Claude Code

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Project	Deployment	Actions	Updated
eggscape	Ready	Preview	Sep 22, 2026 7:31pm UTC