NOTICE

## What the MIT license covers

The MIT license in LICENSE covers the original work in this repository: the
six-layer architecture and the way the skills are cut apart, the ARR-SPEC
schema and its template, the backend capability format, the numbered
principles, the checklists and self-check tables, the boundary and transfer
tables, the style-fusion ownership rules, the frontmatter and file
conventions, and the README text in both languages. That part is free to use,
modify and redistribute, commercial use included.

## What it does not cover

LICENSE cannot grant rights in material that belongs to someone else. The
following is quoted or described in this repository and is not relicensed by
it:

1. **Quotations.** Passages from the orchestration, harmony, form,
   counterpoint, arranging, mixing and style books listed under "Source books"
   in the README. Copyright in those texts stays with their authors,
   translators, editors and publishers. The excerpts in the `reference.md`
   files are short quotations kept for study and commentary. Redistributing
   them beyond that is the redistributor's own responsibility; MIT does not
   cover it.

2. **Translations.** A Chinese translation of a foreign work holds its own
   copyright, belonging to the translator and the publisher, separate from the
   original. This applies to the Chinese editions of Adler, Schoenberg,
   Sposobin, Levine, Izhaki, Howard & Angus and the Japanese arranging books.

3. **Musical examples and figure references.** Where a skill cites a figure or
   a musical example by number and page, that is a pointer into the book, not
   a reproduction of it. No scores, no engraved examples and no audio are
   redistributed here.

4. **Measured data from recordings.** The corpus layer stores structure and
   parameters measured from multitrack recordings — section boundaries, bar
   counts, energy curves, entry and exit events, harmonic degrees, dynamics
   figures. It stores no audio, no copied notation and no lyrics. Measurements
   of a recording are facts about it, but these tables exist to send you to the
   music, not to replace it.

5. **Backend and product names.** Suno, YuE2, ACE-Step, Stable Audio, MiniMax
   and any other backend named in `backends.yaml` are the marks of their
   respective owners. They are named to describe interoperability, and naming
   them implies no endorsement in either direction. Model weights carry their
   own licenses — some of them non-commercial — and this repository grants no
   rights in them.

## Rights holders

The quotations in this repository are made for study and commentary, kept
short, and attributed with source and page. If you hold rights in quoted
material and believe a passage goes beyond that, open an issue at
https://github.com/jtydhr88/music-composition-skills/issues and it will be
shortened or removed.

## Buy the books

Every skill's "附：来源" section names the books it rests on, with page
numbers. The tables are an index into those books, not a substitute for them.