### Compile and Install Gregorio

Source: https://gregorio-project.github.io/installation-mac.html

Standard commands to build and install the software.

```bash
$ ./build.sh --arch=x86_64
$ sudo ./install.sh
```

--------------------------------

### Initial GABC File Setup

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-file-01.html

Defines the name of the piece and the starting clef and note.

```gabc
name:Kyrie XVII;
%%
(c4)Ky(f)
```

--------------------------------

### Custom Installation Paths

Source: https://gregorio-project.github.io/installation-mac.html

Commands to specify custom installation directories for the binary and TeX files.

```bash
./build.sh --arch=x86_64 --prefix=/path/to/custom/root
sudo ./install.sh dir:/path/to/custom/texmf
```

--------------------------------

### Install Dependencies

Source: https://gregorio-project.github.io/installation-mac.html

Installs required build tools and libraries for Gregorio.

```bash
sudo port install libtool autoconf automake flex bison py-pygments
```

```bash
sudo port install libxml2
```

```bash
sudo port install bash git
```

```bash
sudo port install fontforge
```

```bash
sudo port install python27 ImageMagick coreutils
```

--------------------------------

### Install build dependencies on Ubuntu/Debian/Mint

Source: https://gregorio-project.github.io/installation-linux.html

Installs the necessary tools for building the project from the repository using apt-get.

```bash
sudo apt-get install git autoconf libltdl7-dev flex bison fontforge python-pygments
```

--------------------------------

### Install Command Line Tools

Source: https://gregorio-project.github.io/installation-mac.html

Installs the necessary Xcode command line tools.

```bash
xcode-select --install
```

--------------------------------

### Install Gregorio to custom locations

Source: https://gregorio-project.github.io/installation-linux.html

Use these commands to specify custom installation paths for the software and TeX files.

```bash
./build.sh --prefix=/path/to/custom/root
```

```bash
sudo ./install.sh dir:/path/to/custom/texmf
```

--------------------------------

### Handle Ubuntu sudo installation issues

Source: https://gregorio-project.github.io/installation-linux.html

Alternative commands for Ubuntu users encountering permission issues with the standard installation script.

```bash
sudo su ./install.sh
```

--------------------------------

### Install build tools on Debian-based systems

Source: https://gregorio-project.github.io/installation-linux.html

Installs the essential compilation tools required for building Gregorio on Ubuntu, Debian, or Mint.

```bash
sudo apt-get install build-essential
```

--------------------------------

### Complete GABC Notation Example

Source: https://gregorio-project.github.io/gabc/details.html

A full example of GABC syntax including header metadata, musical notation, and psalm tone endings.

```gabc
name: Populus Sion;
%%
(c3) Pó(eh/hi)pu(h)lus(h) Si(hi)on,(hgh.) *(;) ec(hihi)ce(e.) Dó(e.f!gwh/hi)mi(h)nus(h) vé(hi)ni(ig/ih)et(h.) (,)

ad(IV./hig)sal(fe~)ván(ghg)das(fg) gen(e_f_e_)tes(e.) :(:) et(e) au(eh)dí(h/hi)tam(i) fá(kjki)ci(i)et(i) Dó(ij)

mi(ihi)nus(IV./hiHF) (,) gló(h!i'j)ri(ji!KVJI)am(ij~) vo(j.i!jwk)cis(ji) su(i_j_i_)æ,(i.) (;) in(e) læ(e)tí(e!f'h)ti(h)a(hi!JVji)

cor(gh!ijI'H)dis(ihhf!gwh) ves(e_f_e_)tri.(e) <i>Ps.</i>(::) Qui(ehg) re(hi)gis(i) I(i)sra(i)el,(ik) in(j)tén(ji~)de(ij..) :*(:)

qui(ig) de(dú)cis(i) vel(i)ut(i!jwk) o(i')vem(h) Jo(hhh)seph.(fe..) (::) Gló(ehg)ri(hi)a(i) Pa(i)tri.(i) (:)

E(i)u(i!jwk)o(i)u(h) a(hhh)e(fe..) (::)
```

--------------------------------

### Install additional development dependencies

Source: https://gregorio-project.github.io/installation-linux.html

Required packages for contributors or specific older versions of the project.

```bash
imagemagick
```

```bash
libxml2-dev
```

--------------------------------

### Basic \gabcsnippet implementation

Source: https://gregorio-project.github.io/tutorial/tutorial-snippet-01.html

A simple example of using \gabcsnippet to render a chant snippet.

```LaTeX
\gabcsnippet{(cb3) Ad(d)or(f')o(h) te(h') de(h)vo(hi)te,(h.) (,) la(g)tens(f) De(e')i(d)tas,(d.) (;)
Quae(d) sub(f) his(h') fi(h)gu(hi)ris(h.) (,) ve(g)re(f) la(e')ti(d)tas:(d.) (:)
Ti(h)bi(h) se(ij) cor(k) me(kj)um(h.) (,) to(i)tum(h) sub(g')ji(f)cit,(e.) (;)
Qui(f)a(h) te(g') con(f)tem(ed)plans(d.) (,) to(f)tum(d) de(e')fi(d)cit.(d.) (::)}
```

--------------------------------

### Create a dynamically sized brace

Source: https://gregorio-project.github.io/gabc/details.html

Define the start and end points of a brace to allow automatic sizing based on note placement.

```GABC
[ob:0{]
```

```GABC
[ob:0}]
```

--------------------------------

### Define gabc-copyright header

Source: https://gregorio-project.github.io/gabc

Example of the gabc-copyright field containing a license notice and URL.

```text
gabc-copyright: CC0-1.0 by Elie Roux, 2009 <http://creativecommons.org/publicdomain/zero/1.0/>;
```

--------------------------------

### Input notes and lyrics for 'clamor'

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-01.html

Example of mapping notes to the syllables of the word 'clamor'.

```gabc
cla(g)mor(g)
```

--------------------------------

### Define GABC header fields

Source: https://gregorio-project.github.io/gabc/index.html

Examples of specific header fields for copyright and licensing information.

```text
gabc-copyright: CC0-1.0 by Elie Roux, 2009 <http://creativecommons.org/publicdomain/zero/1.0/>;
```

```text
score-copyright: (C) Abbaye de Solesmes, 1934
```

--------------------------------

### Define score-copyright header

Source: https://gregorio-project.github.io/gabc

Example of the score-copyright field indicating the source score's copyright.

```text
score-copyright: (C) Abbaye de Solesmes, 1934
```

--------------------------------

### Separation Bar Usage

Source: https://gregorio-project.github.io/gabc

Examples of how to place separation bars within GABC text and note sequences.

```text
 jus(g) (::) Di(g) 
```

```text
 jus :(g) (:) 
```

--------------------------------

### Initialize GregorioTeX document

Source: https://gregorio-project.github.io/tutorial/tutorial-snippet-01.html

The basic document structure required to use the \gabcsnippet command with an empty staff.

```latex
\documentclass[12pt, a5paper]{article}

\usepackage{fullpage}

\usepackage{fontspec}
\usepackage{libertine}

\usepackage[autocompile]{gregoriotex}

\begin{document}

\gabcsnippet{(cb3)}

\end{document}
```

--------------------------------

### Force build configuration

Source: https://gregorio-project.github.io/installation-linux.html

Re-runs the configuration process for the build script if necessary.

```bash
./build.sh --force=autoreconf
```

--------------------------------

### Set brace rendering method

Source: https://gregorio-project.github.io/gabc/details.html

Switch from the default MetaPost rendering to score font rendering.

```LaTeX
\gresetbracerendering{font}
```

--------------------------------

### Uninstalling via Command-line on MacOS and Linux

Source: https://gregorio-project.github.io/installation.html

Use these commands to set the executable bit on the uninstallation script and execute it to remove GregorioTeX components.

```bash
chmod +x $(kpsewhich --var-value TEXMFLOCAL)/scripts/gregoriotex/uninstall-gtex.sh
```

```bash
$(kpsewhich --var-value TEXMFLOCAL)/scripts/gregoriotex/uninstall-gtex.sh
```

--------------------------------

### Final Project Configuration

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-file-03.html

Complete LaTeX document structure incorporating font and spacing customizations.

```latex
\documentclass[12pt, a5paper]{article}

\usepackage{fullpage}

\usepackage{fontspec}
\usepackage{libertine}

\usepackage[autocompile]{gregoriotex}

\grechangestyle{commentary}{\small\bfseries}
\gresetmodenumbersystem{roman-majuscule}

\begin{document}

\begin{center}\begin{huge}\textsc{Kyrie XVII}\end{huge}\end{center}

\grechangedim{lineskip}{1 cm plus 0.36 cm minus 0.09 cm}{scalable}

\gresetheadercapture{date}{grecommentary}{}
\gregorioscore{kyrie-17}


\end{document}
```

--------------------------------

### Clone the development repository

Source: https://gregorio-project.github.io/installation-linux.html

Downloads the development branch of the Gregorio project to a local directory.

```bash
git clone --depth 1 -b develop https://github.com/gregorio-project/gregorio.git gregorio-git
```

```bash
cd gregorio-git
```

--------------------------------

### Configure initial lines

Source: https://gregorio-project.github.io/gabc/index.html

Sets the number of lines the initial letter occupies in the TeX file.

```TeX
\gresetinitiallines{_<integer>_}
```

--------------------------------

### LaTeX Project File with Header Capture

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-file-03.html

Main LaTeX file configured to capture the 'date' header from GABC and display it as a commentary.

```latex
\documentclass[12pt, a5paper]{article}

\usepackage{fullpage}

\usepackage{fontspec}
\usepackage{libertine}

\usepackage[autocompile]{gregoriotex}

\begin{document}

\gresetheadercapture{date}{grecommentary}{}
\gregorioscore{kyrie-17}

\end{document}
```

--------------------------------

### Legacy Build Flags

Source: https://gregorio-project.github.io/installation-mac.html

Optional flags for versions prior to 4.0 to create self-contained binaries.

```bash
--enable-all-static --disable-shared --enable-static-ltdl
```

--------------------------------

### LaTeX Project File with Title and Mode Formatting

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-file-03.html

Final LaTeX configuration adding a document title and setting the mode number system to roman-majuscule.

```latex
\documentclass[12pt, a5paper]{article}

\usepackage{fullpage}

\usepackage{fontspec}
\usepackage{libertine}

\usepackage[autocompile]{gregoriotex}

\grechangestyle{commentary}{\small\bfseries}
\gresetmodenumbersystem{roman-majuscule}

\begin{document}
\begin{center}\begin{huge}\textsc{Kyrie XVII}\end{huge}\end{center}

\gresetheadercapture{date}{grecommentary}{}
\gregorioscore{kyrie-17}

\end{document}
```

--------------------------------

### Command line compilation steps

Source: https://gregorio-project.github.io/introduction-editor.html

The underlying commands executed by the editor during the compilation process.

```bash
lualatex --shell-escape test.tex
```

```bash
gregorio example.gabc
```

--------------------------------

### LaTeX Project File with Custom Commentary Style

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-file-03.html

LaTeX file modified to change the commentary style to small bold text.

```latex
\documentclass[12pt, a5paper]{article}

\usepackage{fullpage}

\usepackage{fontspec}
\usepackage{libertine}

\usepackage[autocompile]{gregoriotex}

\grechangestyle{commentary}{\small\bfseries}

\begin{document}

\gresetheadercapture{date}{grecommentary}{}
\gregorioscore{kyrie-17}

\end{document}
```

--------------------------------

### GregorioTeX Main Document

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-file-01.html

The LaTeX wrapper required to compile GABC files into a PDF.

```latex
\documentclass[12pt, a5paper]{article}

\usepackage{fullpage}

\usepackage{fontspec}
\usepackage{libertine}

\usepackage[autocompile]{gregoriotex}

\begin{document}

\gregorioscore{kyrie-17}

\end{document}
```

--------------------------------

### Load Custom Spacing Configuration

Source: https://gregorio-project.github.io/gregoriotex/details.html

Load a custom spacing configuration file to override default score spacing settings.

```LaTeX
\greloadspaceconf{myspaces}
```

--------------------------------

### Full LaTeX document with \gabcsnippet and \greannotation

Source: https://gregorio-project.github.io/tutorial/tutorial-snippet-01.html

A complete LaTeX document structure using \gabcsnippet and manual annotation.

```LaTeX
\documentclass[12pt, a5paper]{article}

\usepackage{fullpage}

\usepackage{fontspec}
\usepackage{libertine}

\usepackage[autocompile]{gregoriotex}

\begin{document}

\greannotation{\textsc{v}}

\gabcsnippet{(cb3) Ad(d)ór(f')o(h) te(h') de(h)vó(hi)te,(h.) (,) la(g)tens(f) Dé(e')i(d)tas,(d.) (;)
Quae(d) sub(f) his(h') fi(h)gú(hi)ris(h.) (,) ve(g)re(f) lá(e')ti(d)tas:(d.) (:)
Ti(h)bi(h) se(ij) cor(k) me(kj)um(h.) (,) to(i)tum(h) s<v>{\'u}</v>b(g')ji(f)cit,(e.) (;)
Qui(f)a(h) te(g') con(f)t<v>{\'e}</v>m(ed)plans(d.) (,) to(f)tum(d) d<v>{\'e}</v>(e')fi(d)cit.(d.) (::)}

\end{document}
```

--------------------------------

### Link distances with stretch and shrink

Source: https://gregorio-project.github.io/tips/fontdimen.html

Uses \gluestretch and \glueshrink to propagate changes between distances. Requires \makeatletter and \makeatother to handle internal macro names.

```latex
\makeatletter
\grechangedim{interwordspacetext}{\unexpanded{\the\fontdimen2\font plus \the\gluestretch\gre@space@skip@interwordspacenotes minus \the\glueshrink\gre@space@skip@interwordspacenotes}}{fixed}%
\makeatother
```

--------------------------------

### Configure TeXworks Syntax Highlighting

Source: https://gregorio-project.github.io/configuration-texworks.html

Append this configuration to syntax-patterns.txt to enable syntax highlighting for .gabc files.

```text
[Gabc]  
 # notes  
 tomato  N   \([^\)]*\)  
 # headers  
 darkblue    N   [^\(:]+:.*;  
 # comments  
 gray            Y   %.*
```

--------------------------------

### Direct compilation configuration for gabc files

Source: https://gregorio-project.github.io/introduction-editor.html

Directives to add to the top of a gabc file to enable direct compilation from the score window.

```latex
% !TEX root = test.tex  
% !TEX TS-program = LuaLaTeX+se
```

--------------------------------

### Create a fixed-width brace

Source: https://gregorio-project.github.io/gabc/details.html

Use this syntax to define a brace with a specific length.

```GABC
[ob:1;6mm]
```

--------------------------------

### Illuminare-Specific Configuration Headers

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-01.html

Configuration settings specific to the Illuminare Score Editor, prefixed with a percent sign to be ignored by the Gregorio parser.

```gabc
%fontsize: 12;
```

```gabc
%spacing: vichi;
```

```gabc
%font: OFLSortsMillGoudy;
```

```gabc
%width: 4.5;
```

```gabc
%height: 11;
```

--------------------------------

### Add flat and double bar to GABC

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-file-01.html

Demonstrates adding a flat symbol using 'ix' and a double bar using '::' in the GABC file.

```gabc
name:Kyrie XVII;
%%
(c4)Ky(f)ri(gfg)e(h.) * e(ixjvIH'GhvF'E)le(ghg')i(g)son(f.). <i>bis</i>(::)
```

--------------------------------

### Adjusting Spacing Breaks

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-03.html

Use single, double, or quadruple slashes to control spacing between notes, noting that Gregorio's collision avoidance often handles tight spacing better than the preview.

```gabc
//
```

```gabc
////
```

--------------------------------

### Configure GregorioTeX Layout and Styles

Source: https://gregorio-project.github.io/gregoriotex/details.html

Commands to modify the appearance of staff lines, clefs, fonts, and glyph styles in GregorioTeX.

```latex
\gresetlines{invisible}
```

```latex
\gresetclef{invisible}
```

```latex
\grechangestafflinethickness{_<integer>_}
```

```latex
\gresetgregoriofont[op]{granapadano}
```

```latex
\gresetbolshifts{disable}
```

```latex
\gresetbolshifts{enable}
```

```latex
\gresetglyphstyle{mensural}
```

```latex
\gresetglyphstyle{hufnagel}
```

```latex
\gresetglyphstyle{medicaea}
```

```latex
\gresetlinesbehindpunctumcavum{visible}
```

```latex
\gresetlinesbehindalteration{invisible}
```

--------------------------------

### Insert Multiple Glyphs via Short Score

Source: https://gregorio-project.github.io/tips/isolatedneumes.html

Use a minipage inside a raisebox to render complex gabc snippets as inline neumes, adjusting the dimensions to fit the surrounding text.

```latex
\raisebox{0pt}[\height][\depth]{%
    \begin{minipage}{0.8cm}%
        \gresetlines{invisible}%
        \gresetclef{invisible}%
        \greseteolcustos{manual}%
	    \gabcsnippet{(fvEDC)}%
    \end{minipage}%
}%
```

--------------------------------

### TeXShop compilation directive

Source: https://gregorio-project.github.io/introduction-editor.html

A magic comment to specify the compilation program for TeXShop.

```latex
% !TEX program = LuaLaTeX+se
```

--------------------------------

### Enable Aggressive Aux File Deletion

Source: https://gregorio-project.github.io/configuration-texshop.html

Sets a hidden preference in TeXShop to always perform an aggressive delete of auxiliary files, which is useful for gtex files that do not share the root project name.

```bash
defaults write TeXShop AggressiveTrashAUX YES
```

--------------------------------

### Complete GABC file for Kyrie XVII

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-file-02.html

Full GABC file including all notes for the Kyrie XVII piece.

```gabc
name:Kyrie XVII;
%%
(c4)KY(f)ri(gfg)e(h.) *() e(ixjvIH'GhvF'E)lé(ghg')i(g)son.(f.) <i>bis</i>(::)
Chri(ixj)ste(jv.hijv.) e(ixjvIH'GhvF'E)lé(ghg')i(g)son.(f.)  <i>bis</i>(::)
Ký(f)ri(hj)e(ixjjkij.) e(ixjvIH'GhvF'E)lé(ghg')i(g)son.(f.)  (::)
Ký(f)ri(hj)e(ixjjkij.) *() (ixfhjjkij.) **() e(ixjvIH'GhvF'E)lé(ghg')i(g)son.(f.)  (::)
```

--------------------------------

### Clone Gregorio Repository

Source: https://gregorio-project.github.io/installation-mac.html

Commands to clone the Gregorio repository, either with or without full history.

```bash
$ git clone --depth 1 -b develop https://github.com/gregorio-project/gregorio.git gregorio-git
```

```bash
$ git clone https://github.com/gregorio-project/gregorio.git gregorio-git
```

--------------------------------

### GABC note grouping fragments

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-file-02.html

Demonstrates using an exclamation point to define note grouping patterns.

```gabc
Ký(f)ri(hj)e(ixjjkij.) *(,) (ixfhjjkij.) **(,)
```

```gabc
Ký(f)ri(hj)e(ixjjkij.) *(,) (ixf!hjjkij.) **(,)
```

--------------------------------

### Configure TeXworks File Open Filter

Source: https://gregorio-project.github.io/configuration-texworks.html

Add this line to the texworks-config.txt file to enable filtering for .gabc files in file dialogs.

```text
file-open-filter: Gabc score (*.gabc)
```

--------------------------------

### Quilisma Notation

Source: https://gregorio-project.github.io/gabc

Append a 'w' after a pitch to indicate a quilisma.

```text
w
```

--------------------------------

### Configure TeXworks Cleanup Patterns

Source: https://gregorio-project.github.io/configuration-texworks.html

Add this line to the texworks-config.txt file to ensure intermediate GregorioTeX files are removed during cleanup.

```text
cleanup-patterns: $jobname.gaux *-*_*_*.gtex
```

--------------------------------

### GABC File with Mode and Date Headers

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-file-03.html

Updated GABC file including mode and date metadata headers for use in the score.

```gabc
name:Kyrie XVII;
mode: 6;
date: XIV\textsuperscript{o} s.;
%%
(c4)KY(f)ri(gfg)e(h.) *() e(ixjvIH'GhvF'E)lé(ghg')i(g)son.(f.) <i>bis</i>(::) 
Chri(ixj)ste(jv.hijv.) e(ixjvIH'GhvF'E)lé(ghg')i(g)son.(f.)  <i>bis</i>(::)
Ký(f)ri(hj)e(ixjjkij.) (z) e(ixjvIH'GhvF'E)lé(ghg')i(g)son.(f.)  (::)
Ký(f)ri(hj)e(ixjjkij.) *(,) (ixf!hjjkij.) **(,) (z) e(ixjvIH'GhvF'E)lé(ghg')i(g)son.(f.)  (::)
```

--------------------------------

### Locate system-wide texmf-local

Source: https://gregorio-project.github.io/installation-linux.html

Command to identify the system-wide directory used for TeX files.

```bash
kpsewhich -var-value TEXMFLOCAL
```

--------------------------------

### Update local source files

Source: https://gregorio-project.github.io/installation-linux.html

Updates the local repository to the latest version from the remote source.

```bash
git pull
```

--------------------------------

### Add Comments

Source: https://gregorio-project.github.io/gabc/details.html

Use the percent sign to ignore text on a line.

```GABC
%
```

--------------------------------

### Correct flat placement

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-02.html

Applying a flat by adding a pitch indicator followed by the flat symbol.

```gabc
ix(ix) g(g) h(h)
```

--------------------------------

### Adding accents to \gabcsnippet

Source: https://gregorio-project.github.io/tutorial/tutorial-snippet-01.html

Demonstrates the use of accented characters within the \gabcsnippet command.

```LaTeX
\gabcsnippet{(cb3) Ad(d)ór(f')o(h) te(h') de(h)vó(hi)te,(h.) (,) la(g)tens(f) Dé(e')i(d)tas,(d.) (;)
Quae(d) sub(f) his(h') fi(h)gú(hi)ris(h.) (,) ve(g)re(f) lá(e')ti(d)tas:(d.) (:)
Ti(h)bi(h) se(ij) cor(k) me(kj)um(h.) (,) to(i)tum(h) s{\'u}b(g')ji(f)cit,(e.) (;)
Qui(f)a(h) te(g') con(f)t{\'e}m(ed)plans(d.) (,) to(f)tum(d) d{\'e}(e')fi(d)cit.(d.) (::)}
```

--------------------------------

### Correct text alignment and asterisk placement

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-file-01.html

Shows how to move the period next to the syllable and add empty parentheses to the asterisk to give it its own syllable.

```gabc
e(ixjvIH'GhvF'E)le(ghg')i(g)son.(f.) 
```

```gabc
name:Kyrie XVII;
%%
(c4)Ky(f)ri(gfg)e(h.) *() e(ixjvIH'GhvF'E)le(ghg')i(g)son.(f.) <i>bis</i>(::)
```

--------------------------------

### Inputting notes and bar lines

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-02.html

Initial entry of text and notes for the final word of the third line.

```gabc
e-jus(g) (::)
```

--------------------------------

### Define GABC file structure

Source: https://gregorio-project.github.io/gabc/index.html

The standard structure for a .gabc file, including mandatory and optional header fields followed by the musical notation.

```text
name: incipit;
gabc-copyright: copyright on this gabc file;
score-copyright: copyright on the source score;
office-part: introitus/...;
occasion: in church calendar;
meter: for metrical hymns;
commentary: source of words;
arranger: name of arranger;
author: if known;
date: xi c;
manuscript: ms name;
manuscript-reference: e.g. CAO reference;
manuscript-storage-place: library/monastery;
book: from which score taken;
language: of the lyrics;
transcriber: writer of gabc;
transcription-date: 2009;
mode: 6;
user-notes: whatever other comments you wish to make;
annotation: IN.;
annotation: 6;
%%
(clef) text(notes)
```

--------------------------------

### Incorrect flat placement

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-02.html

Demonstrates the incorrect way to apply a flat to a note.

```gabc
g(g) x(x) h(h)
```

--------------------------------

### Define Vowel Rules in gregorio-vowels.dat

Source: https://gregorio-project.github.io/gabc/index.html

Use this syntax to define language aliases, vowel characters, prefixes, suffixes, and secondary syllable centers.

```text
 alias [english] to [en];  
 alias [English] to [en];  
 alias [eng] to [en];  
   
 language [en];  
   
 vowel aàáâAÀÁÂ;  
 vowel eèéêëEÈÉÊË;  
 vowel iìíîIÌÍÎ;  
 vowel oòóôOÒÓÔ;  
 vowel uùúûUÙÚÛ;  
 vowel yỳýYỲÝ;  
 vowel æǽÆǼ;  
 vowel œŒ;  
   
 prefix qu Qu qU QU;  
 prefix gu Gu gU GU;  
 prefix y Y;  
   
 suffix w W;  
 suffix we We wE WE;  
   
 secondary w W;
```

--------------------------------

### Write basic text and neumes in GABC

Source: https://gregorio-project.github.io/gabc/index.html

Associate neumes with syllables by placing them in parentheses immediately following the syllable.

```gabc
Po(eh/hi)pu(h)lus(h) Si(hi)on(hgh)
```

--------------------------------

### Barebones LaTeX document for Gregorio

Source: https://gregorio-project.github.io/introduction-editor.html

A minimal LaTeX template for including a Gregorio score using the autocompile feature.

```latex
\documentclass[11pt]{article}  
   
 \usepackage{fontspec}  
   
 \usepackage[autocompile]{gregoriotex}  
   
 \begin{document}  
   
 \gregorioscore{example}  
   
 \end{document}
```

--------------------------------

### Add a quilisma to a note

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-01.html

Indicate a quilisma by placing a 'w' after the pitch letter.

```gabc
cw
```

--------------------------------

### Increase spacing between notes

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-01.html

Use a forward slash to force additional space between notes to avoid glyph collision.

```gabc
//
```

--------------------------------

### Generate Gregorian Chant Score Without Margins

Source: https://gregorio-project.github.io/tips/nomargin.html

Uses LaTeX commands to set the PDF page dimensions to the exact size of the score box, effectively removing all margins. Requires manual adjustments for specific font glyphs that may exceed their bounding boxes.

```latex
% !TEX program = LuaLaTeX+se

% This document produces a pdf containing the score with no margin.
% It is based on this solution:
% http://tex.stackexchange.com/questions/291630/best-way-to-know-bottom-line-height-of-a-pdf/291664#291664
%
% It contains advanced commands quite difficult to understand, but should be straightforward
% to adapt to your needs.
%
\documentclass[11pt]{article}
\usepackage{gregoriotex}
\usepackage{libertine}
% Do not load geometry, fullpage, or any package changing width
% or margins.

\hoffset-1in
\voffset-1in
\newbox\scorebox

% using the "commentary" header of the gabc file
\gresetheadercapture{commentary}{grecommentary}{string}

\begin{document}

% here the final "9" of the commentary would be cut too sharp. The reason is that
% the italic "9" glyph in the libertine font is larger than its bounding box, the
% dimension of which that TeX is actually aware (which is normal for italic), so we
% have manually insert the italic correction (`\/`), the small kern which is normally
% used when switching from italics to upright fonts.
% In the libertine font, the “f” is also slightly taller than its bounding box, so we have
% to prevent it from getting cut off too.  Unfortunately, there isn’t a convenient
% measure of this built in, so we have to fudge this ourselves with a strut.  Adjust the
% 0.8em to your taste.
% We use an admittedly strange trick to fix these, redefining grecommentary.
\let\grevanillacommentary\grecommentary
\def\grecommentary#1{\grevanillacommentary{#1\/\rule{0pt}{0.8em}}}

\setbox\scorebox=\vbox{\hsize=10cm\relax % change the width of the score here
	\gregorioscore[a]{PopulusSion}
}
\pdfpagewidth\wd\scorebox
\pdfpageheight\dimexpr\ht\scorebox+\dp\scorebox\relax
\shipout\box\scorebox
\end{document}
```

--------------------------------

### Partial GABC file for Kyrie XVII

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-file-02.html

Initial GABC file structure for the Kyrie XVII score.

```gabc
name:Kyrie XVII;
%%
(c4)KY(f)ri(gfg)e(h.) *() e(ixjvIH'GhvF'E)lé(ghg')i(g)son.(f.) <i>bis</i>(::)
```

--------------------------------

### Arrange Multiple Scores on One Line

Source: https://gregorio-project.github.io/tips/shortscore.html

Place multiple minipage environments side-by-side to display several scores on the same line. Use the [t] alignment option to ensure staff lines remain aligned.

```latex
% !TEX TS-program = LuaLaTeX+se
\documentclass[11pt]{article}

\usepackage{gregoriotex}
\usepackage{fullpage}
\usepackage{libertine}

\gresetinitiallines{0}
\greseteolcustos{manual}%
\pagestyle{empty}

\begin{document}

\noindent%
\begin{minipage}[t]{4.8cm}%
	\gabcsnippet{(c4) V/. Ky(f)ri(d)e(d) e(d)le(d)i(c)son(d.) R/.(::)}%
\end{minipage}%
\begin{minipage}[t]{3.6cm}%
	\gresetlinecolor{gregoriocolor}%
	\gresetclef{invisible}%
	\gabcsnippet{ Chris(f)te(d) e(d)le(d)i(c)son(d.)}%
\end{minipage}%
\begin{minipage}[t]{4.5cm}%
	\gresetclef{invisible}%
	\gabcsnippet{V/.(::) Ky(f)ri(d)e(d) e(d)le(d)i(c)son(d.) (::)}%
\end{minipage}%

\end{document}
```

--------------------------------

### Configure Custos Behavior

Source: https://gregorio-project.github.io/gabc/details.html

Control the automatic generation of custos at line endings or force them manually.

```GABC
\greseteolcustos{manual}
```

```GABC
z0
```

```GABC
g+
```

--------------------------------

### Define GABC Annotations

Source: https://gregorio-project.github.io/gabc/index.html

Use these headers to define annotations for the chant. Full TeX markup is supported for styling.

```text
annotation:Ad Magnif.;  
 annotation:VIII G;
```

```text
annotation:{\color{red}Ad Magnif.};  
 annotation:{\color{red}VIII G};
```

--------------------------------

### Change Typeface in LaTeX

Source: https://gregorio-project.github.io/tutorial/tutorial-gabc-file-03.html

Replace the default font package with a custom font using the setmainfont command.

```latex
\usepackage{libertine}
```

```latex
\setmainfont{Arial}
```