# Palimpsest

> *Your history becomes your sound.*

**Palimpsest** is an instrument that remembers what you play. Every interval
you play carves the timbre — play fifths for an evening and the instrument
answers in fifths; stop playing and it slowly goes bare again. The memory
belongs to the **machine**, not the track: every instance reads and carves the
same one, and it outlives the session.

- **The interval is what gets carved** — it takes two notes to write.
- **Sympathetic strings** tuned to the intervals your memory holds answer when
  you play, and keep ringing after the note.
- **Forgetting is structural** — there is no off. What you stop playing goes
  bare again, in days of wall-clock time.
- Eleven measured bodies, six exciters (including saw/square), 84 factory
  presets that tell stories, a ladder filter, MPE support where pressure
  *engraves* rather than modulates.

**VST3 · CLAP · AU — macOS (10.13+, universal), Windows, Linux.**
The full user manual (PDF, English and French) is included with every
release. Demo and licence: https://xeni-audio.com

## Developing

```sh
nix develop          # le shell complet (build, validateurs, parité DSP)
```

Puis suivre `docs/IMPLEMENTATION-PLAN.md`. Les trois autorités : le proto
(`~/workspace/palimpsest-proto/`, DSP de référence), la maquette
(`docs/ui/palimpsest-ui.html`, cahier des charges validé), et
`docs/PITFALLS-INHERITED.md` (les bugs déjà payés par les 6 produits en
vente — à lire avant de coder).
