- make_tune: validate_spec() reports every spec problem in one run (missing keys, unknown style, bad qualities, bpm<=0, out-of-range loop/fills, melody longer than chart, unsafe name) — no raw KeyErrors - make_tune: key_sig_for handles accidentals in minor and major keys, any case (Bb minor, F# minor, bb major); real spellings kept (C# major) - make_tune: n64 pad uses QUALITIES table (dim/aug/sus now correct) - make_tune: WARNING on stderr for fields a style can't use (counter for non-DOS, fills_at for n64) instead of silent drops - make_tune: name sanitised ([A-Za-z0-9][A-Za-z0-9._-]*), no traversal - make_tune: render errors actionable (timidity presence check, stderr surfaced, sys.executable instead of bare python3) - songkit: parse_score lints the FINAL bar too (was unchecked); this caught a real 5-beat bar in 01_service_station_2am COUNTER_A (fixed) - build_all.sh: dependency + soundfont checks, removes stale midi/wav outputs with no current source, fails if nothing was produced - smoke_test: runs every spec, checks loop marker tick positions, feeds malformed bars to the linter, covers validation + key sigs - AGENTS.md: documents 0-based bars and exclusive end_bar, validation behaviour; SKILL.md added so the repo loads as an agent skill
32 lines
1.4 KiB
Markdown
32 lines
1.4 KiB
Markdown
---
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name: midi-playlist-repo
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description: Compose retro game MIDI in /root/midi-playlist via JSON specs. Use when writing, fixing, or rendering chiptune/DOS/N64-style tunes.
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version: 1.0.0
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---
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# midi-playlist: retro MIDI from JSON specs
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Repo: `/root/midi-playlist` (stdlib-only Python; `lib/midikit.py`, `lib/songkit.py`).
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## The workflow
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1. Copy `tunes/specs/04_tea_break_at_the_terminal.json`, change `name`,
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`style`, `bpm`, `key`, `chords`, `melody`, `loop`.
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2. `python3 tools/make_tune.py tunes/specs/<name>.json --render`
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3. Never declare success without a passing run: the command re-parses the
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MIDI, renders WAV via timidity, and checks clipping / dead air / duration.
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4. Whole-repo check: `python3 tests/smoke_test.py` then `./tools/build_all.sh`.
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## Conventions an agent must not guess
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- Bars are **0-based**; `loop.end_bar` is **EXCLUSIVE**.
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- `melody_start_bar + number of '|' bars <= len(chords)`.
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- If the melody uses `|`, every bar (including the last) must total 4/4 —
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the linter names the offending bar.
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- Styles: `dos_adventure` (OPL-ish, supports `counter` + `fills_at`),
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`n64_ambient` (pads/flute, no drums), `chiptune_racing` (stabs, no `counter`).
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- Validation reports every spec problem at once; style-incompatible fields
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warn on stderr instead of being dropped silently.
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Full details, score grammar and rendering options: `AGENTS.md` in the repo.
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