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Main author: [Fr. Jacques Peron](mailto:cataclop@hotmail.com)
This material is subject to the MIT license.
# Lyluatex
## Usage
In the preable of your document, include the package `lyluatex`:
```TeX
\usepackage{lyluatex}
```
The `program` option permits the definition of an alternative path to
`lilypond`, for example:
```TeX
\usepackage[program=/opt/lilypond-dev/lilypond]{lyluatex}
```
Thereafter, you can include a lilypond file with the command:
```TeX
\lilypondfile[staffsize=17]{PATH/TO/THE/FILE}
```
The argument `staffsize`, which is optional, changes the size of the score. You
can change the size for all the subsequent scores in a document by placing the
following command before your first include statement to be so affected:
```TeX
\lysetoption{staffsize}{24}
```
Next, you simply need to compile the document normally with the command
`lualatex -shell-escape` :
```bash
lualatex -shell-escape DOCUMENT.TEX
```
Another "more secure" option is to add `lilypond` and `gs` to default allowed commands :
```bash
shell_escape_commands=$(kpsewhich -expand-var '$shell_escape_commands'),lilypond,gs lualatex DOCUMENT.TEX
```
On systems with low RAM, when working on big documents, you could encounter
*buffer overflows* in `lilypond` calls. In that case, first compile with option
`-draftmode`, then compile again without this option.
You can also input music directly into your docoment with the `lilypond` environment.
This is only recommended for relatively short snippets. For example:
```TeX
\begin{lilypond}
\relative c' { c d e f g a b c }
\end{lilypond}
```
Finally, for truly short snippets, there is also the `\lily` command. Example:
```TeX
\lilypond[staffsize=12]{c' d' g'}
```
**Nota bene:** The `\lilypond` command *does not* support blocks of LilyPond
code with explicit `\score` blocks. Such code must be included with the
`lilypond` environment or as a separate file.
## Migration from `lilypond-book`
In order to facilitate the migration from `lilypond-book`, `\lilypondfile`,
the environment `lilypond` and the command `\lilypond` should work nearly
as with `lilypond-book` ; for even more identical behaviour, call `lyluatex`
like follows:
```TeX
\usepackage[program=/opt/lilypond-dev/lilypond]{lyluatex}
```
That way, documents typeset with `lilypond-book` can be adapted to use
`lyluatex` without much difficulty.
# Credits
Cf. [Contributors.md](Contributors.md)
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