Synths scope

What belongs in the catalog package: voices and dispatch, never grammar or transport.

The instrument catalog for .deck — the 33 Web Audio voices, and the dispatch that picks one.

Entry: src/index.tish

This package exists so that one set of voices serves every host: Deckard, @spacedevin/deck-player, the docs site, the WAV renderer. The root AGENTS.md keeps audio out of the language package; the player's AGENTS.md keeps voice implementations out of the player. Both of those exclusions land here.

In scope

• Voices: one src/<Name>.tish per generator id, a pure play<Name>(ctx, bus, t, midi, vel, durSec, ch, bendSemis) that builds a short-lived subgraph, connects it to bus.input, and disconnects its nodes once the tail has passed. A voice may instead return { stopTime, disconnects } and let the host prune it per step, which is the path to take when a voice must not lean on a wall-clock timer
• Registry.tish — the catalog: id, label, description, default generatorParams
• Dispatch.tish — dispatchPlayNote by ch.generatorId, basicOsc fallback for unknown ids
• DeckIds.tish — teaching the language this catalog's ids, param aliases and gen_block dialects (ensureDeckGeneratorIds), via the registries docs/HOST.md describes
• Shared DSP: Duty.tish, AdsrAmpSchedule.tish, Midi.tish, the PatchGraph / MatrixFmGraph parsers
• SyncWorklet.tish — the hard-sync processor from an inline Blob URL
• BuiltinMacros.tish — the builtin macro contents the language package deliberately leaves empty

Out of scope — do not add here

• Grammar. New tokens, body heads or statements belong in ../../src/ and its conformance corpus. Register vocabulary through the language's registries; never re-tokenize .deck text.
• Sequencing. Song IR, defaults and clamps, the transport, buses and the master chain are the player's. A voice receives a resolved note; it does not decide when notes happen.
• Assets to copy. The worklet is inlined for that reason. meSpeakVocal is the one exception and is documented as such.

Notes for editors

• No class syntax in Tish — tish build emits JS that doesn't parse. Worklet processors are written as a JS string for that reason.
• Deterministic by design: seed anything random so two renders of one song are identical.
• Two copies of @spacedevin/deck in one page means two dialect registries. Keep it a peer.