Files
songbook/CLAUDE.md
shahondin1624 4024d0e421 Rewrite songbook as pure LaTeX project (Carmina Leonis style)
Replace the Kotlin/Gradle multi-module pipeline with a pure LaTeX
songbook using the leadsheets package and LuaLaTeX. Style matches
the Carmina Leonis (CL6) scout songbook: Fraktur titles, chords
above lyrics, metadata at page bottom, reference book footer.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-01 08:23:57 +02:00

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# CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
## Build Commands
```bash
# Build the songbook PDF (two-pass for TOC)
make
# Remove auxiliary files
make clean
# Remove everything including PDF
make distclean
```
Requires LuaLaTeX (TeX Live) and the `leadsheets` package.
## Project Structure
```
songbook.tex # Main document (title page, TOC, song inputs)
songbook-style.sty # Style package (geometry, fonts, leadsheets config)
songs/ # One .tex file per song
fonts/ # Font files (UnifrakturMaguntia for titles)
images/ # Filler images (empty for now)
Makefile # Build rules (lualatex, two passes)
output/ # Generated PDF (gitignored)
```
## How It Works
Pure LaTeX songbook using the `leadsheets` package with LuaLaTeX. The style matches the Carmina Leonis songbook format:
- Song titles in Fraktur/blackletter font (UnifrakturMaguntia)
- Chords above lyrics in regular weight, black
- No verse labels (verses separated by blank lines)
- Metadata (Worte/Weise) at bottom of each song page
- Reference book cross-references (MO, PfLB) in footer
- Each song starts on a new page
- A5 twoside format with page numbers at bottom-outer
## Song Format
Each song uses the `leadsheets` `song` environment:
```latex
\begin{song}{
title = Song Title,
lyrics = Lyricist,
composer = Composer,
key = G,
mundorgel = 42,
pfadfinderliederbuch = 118,
note = {Optional note text.},
}
\begin{verse}
\chord{G}Lyrics with \chord{D}chords above. \\
Next \chord{C}line here.
\end{verse}
\begin{verse}
Second verse without chords (or with).
\end{verse}
\end{song}
```
**Important constraints:**
- Use `\\` for line breaks within verses (not blank lines)
- Never place two `\chord{}` commands without a space between them — split compound words with a hyphen: `\chord{D}Abend- \chord{A}zeit.`
- Custom properties: `alias`, `note`, `mundorgel`, `pfadfinderliederbuch`
- Verse types: `verse` (no label), `verse*` (for custom-labeled sections like Kanon, Ref.)
- `musicsymbols` library skipped (requires `musix11` font not installed)
## Style Details (songbook-style.sty)
- Page geometry: A5, margins (top 15mm, bottom 20mm, inner 20mm, outer 12mm)
- Body font: TeX Gyre Heros (Helvetica clone)
- Title font: UnifrakturMaguntia (Fraktur/blackletter, from `fonts/` directory)
- Chord format: small, regular weight, black
- Song title template: Fraktur title only (metadata rendered at bottom via `after-song` hook)
- Reference style based on Carmina Leonis (Pfadfinder scout songbook)