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<title>GNU LilyPond – Manuel d’initiation : 5.1.3 Large projects</title>
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<tr><td valign="middle" align="left" colspan="1">[<a href="Working-on-LilyPond-projects.fr.html#Working-on-LilyPond-projects" title="Début de ce chapitre ou chapitre précédent"> << Working on LilyPond projects </a>]</td><td valign="middle" align="center" colspan="3">[<a href="index.fr.html#Top" title="Couverture (top) du document" rel="start">Racine</a>][<a href="index_toc.fr.html#SEC_Contents" title="Table des matières" rel="contents">Table des matières</a>][<a href="LilyPond-index.fr.html#LilyPond-index" title="Index" rel="index">Index</a>][<a href="index_abt.fr.html#SEC_About" title="A propos (page d’aide)" rel="help"><font size="-4"> </font>? </a>]</td><td valign="middle" align="right" colspan="1">[<a href="Templates.fr.html#Templates" title="Chapitre suivant"> Templates >> </a>]</td></tr><tr><td valign="middle" align="left" colspan="2">[<a href="Typesetting-existing-music.fr.html#Typesetting-existing-music" title="Section précédente dans l’ordre de lecture" accesskey="p" rel="previous"> < Typesetting existing music </a>]</td><td valign="middle" align="center" colspan="1">[<a href="Suggestions-for-writing-LilyPond-input-files.fr.html#Suggestions-for-writing-LilyPond-input-files" title="Section supérieure" accesskey="u" rel="up"> Plus haut: Suggestions for writing LilyPond input files </a>]</td><td valign="middle" align="right" colspan="2">[<a href="Saving-typing-with-variables-and-functions.fr.html#Saving-typing-with-variables-and-functions" title="Section suivante dans l’ordre de lecture" accesskey="n" rel="next"> Saving typing with variables and functions > </a>]</td></tr></table>
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<h3 class="subsection">5.1.3 Large projects</h3>
<p>Lorsque l’on travaille sur un gros projet, il devient vital
de structurer clairement ses fichiers LilyPond.
</p>
<ul>
<li> <strong>Utilisez un identificateur pour chaque voix</strong>,
avec un minimum de structure dans la définition. La structure de la
section <code>\score</code> est la plus susceptible de changer, notamment
dans une nouvelle version de LilyPond, alors que la définition du
<code>violon</code> l’est beaucoup moins.
<blockquote><pre class="example">violin = \relative c'' {
g4 c'8. e16
}
...
\score {
\new GrandStaff {
\new Staff {
\violin
}
}
}
</pre></blockquote>
</li><li> <strong>Séparez les retouches</strong> des définitions de
musique. Ce conseil a été vu dans <a href="General-suggestions.fr.html#General-suggestions">General suggestions</a>,
mais pour les projets d’importance c’est absolument vital. Nous
pouvons avoir besoin de changer la définition de
<code>fthenp</code>, mais dans ce cas nous n’aurons besoin de le faire
qu’une seule fois, et nous pourrons encore éviter de
modifier quoi que ce soit à l’intérieur de la définition
du <code>violon</code>.
<blockquote><pre class="example">fthenp = _\markup{
\dynamic f \italic \small { 2nd } \hspace #0.1 \dynamic p }
violin = \relative c'' {
g4\fthenp c'8. e16
}
</pre></blockquote>
</li></ul>
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title="Documentation Index"><< Retour à l’accueil de la documentation</a></p>
<h4 class="toc_header"><a href="index.fr.html#Top" title="Start of the manual">Manuel d’initiation</a></h4>
<div class="contents">
<ul class="toc">
<li><a name="toc-Preface-1" href="Preface.fr.html#Preface">Preface</a> </li>
<li><a name="toc-Introduction-1" href="Introduction.fr.html#Introduction">1. Introduction</a>
<ul class="toc">
<li><a name="toc-Background-1" href="Background.fr.html#Background">1.1 Background</a> </li>
<li><a name="toc-About-the-documentation-1" href="About-the-documentation.fr.html#About-the-documentation">1.2 About the documentation</a> </li>
</ul>
</li>
<li><a name="toc-Tutorial-1" href="Tutorial.fr.html#Tutorial">2. Tutorial</a>
<ul class="toc">
<li><a name="toc-First-steps-1" href="First-steps.fr.html#First-steps">2.1 First steps</a> </li>
<li><a name="toc-Single-staff-notation-1" href="Single-staff-notation.fr.html#Single-staff-notation">2.2 Single staff notation</a> </li>
<li><a name="toc-Multiple-notes-at-once-1" href="Multiple-notes-at-once.fr.html#Multiple-notes-at-once">2.3 Multiple notes at once</a> </li>
<li><a name="toc-Songs-1" href="Songs.fr.html#Songs">2.4 Songs</a> </li>
<li><a name="toc-Final-touches-1" href="Final-touches.fr.html#Final-touches">2.5 Final touches</a> </li>
</ul>
</li>
<li><a name="toc-Fundamental-concepts-1" href="Fundamental-concepts.fr.html#Fundamental-concepts">3. Fundamental concepts</a>
<ul class="toc">
<li><a name="toc-How-LilyPond-input-files-work-1" href="How-LilyPond-input-files-work.fr.html#How-LilyPond-input-files-work">3.1 How LilyPond input files work</a> </li>
<li><a name="toc-Voices-contain-music-1" href="Voices-contain-music.fr.html#Voices-contain-music">3.2 Voices contain music</a> </li>
<li><a name="toc-Contexts-and-engravers-1" href="Contexts-and-engravers.fr.html#Contexts-and-engravers">3.3 Contexts and engravers</a> </li>
<li><a name="toc-Extending-the-templates-1" href="Extending-the-templates.fr.html#Extending-the-templates">3.4 Extending the templates</a> </li>
</ul>
</li>
<li><a name="toc-Tweaking-output-1" href="Tweaking-output.fr.html#Tweaking-output">4. Tweaking output</a>
<ul class="toc">
<li><a name="toc-Tweaking-basics-1" href="Tweaking-basics.fr.html#Tweaking-basics">4.1 Tweaking basics</a> </li>
<li><a name="toc-The-Internals-Reference-manual-1" href="The-Internals-Reference-manual.fr.html#The-Internals-Reference-manual">4.2 The Internals Reference manual</a> </li>
<li><a name="toc-Appearance-of-objects-1" href="Appearance-of-objects.fr.html#Appearance-of-objects">4.3 Appearance of objects</a> </li>
<li><a name="toc-Placement-of-objects-1" href="Placement-of-objects.fr.html#Placement-of-objects">4.4 Placement of objects</a> </li>
<li><a name="toc-Collisions-of-objects-1" href="Collisions-of-objects.fr.html#Collisions-of-objects">4.5 Collisions of objects</a> </li>
<li><a name="toc-Further-tweaking-1" href="Further-tweaking.fr.html#Further-tweaking">4.6 Further tweaking</a> </li>
</ul>
</li>
<li class="toc_current"><a name="toc-Working-on-LilyPond-projects-1" href="Working-on-LilyPond-projects.fr.html#Working-on-LilyPond-projects">5. Working on LilyPond projects</a>
<ul class="toc">
<li class="toc_current"><a name="toc-Suggestions-for-writing-LilyPond-input-files-1" href="Suggestions-for-writing-LilyPond-input-files.fr.html#Suggestions-for-writing-LilyPond-input-files">5.1 Suggestions for writing LilyPond input files</a>
<ul class="toc">
<li><a name="toc-General-suggestions-1" href="General-suggestions.fr.html#General-suggestions">5.1.1 General suggestions</a> </li>
<li><a name="toc-Typesetting-existing-music-1" href="Typesetting-existing-music.fr.html#Typesetting-existing-music">5.1.2 Typesetting existing music</a> </li>
<li class="toc_current"><a name="toc-Large-projects-1" href="Large-projects.fr.html#Large-projects">5.1.3 Large projects</a> </li>
<li><a name="toc-Saving-typing-with-variables-and-functions-1" href="Saving-typing-with-variables-and-functions.fr.html#Saving-typing-with-variables-and-functions">5.1.4 Saving typing with variables and functions</a> </li>
<li><a name="toc-Style-sheets-1" href="Style-sheets.fr.html#Style-sheets">5.1.5 Style sheets</a> </li>
</ul>
</li>
<li><a name="toc-When-things-don_0027t-work-1" href="When-things-don_0027t-work.fr.html#When-things-don_0027t-work">5.2 When things don’t work</a> </li>
<li><a name="toc-Scores-and-parts-1" href="Scores-and-parts.fr.html#Scores-and-parts">5.3 Scores and parts</a> </li>
</ul>
</li>
<li><a name="toc-Templates-1" href="Templates.fr.html#Templates">A. Templates</a>
<ul class="toc">
<li><a name="toc-Single-staff-1" href="Single-staff.fr.html#Single-staff">A.1 Single staff</a> </li>
<li><a name="toc-Piano-templates-1" href="Piano-templates.fr.html#Piano-templates">A.2 Piano templates</a> </li>
<li><a name="toc-String-quartet-1" href="String-quartet.fr.html#String-quartet">A.3 String quartet</a> </li>
<li><a name="toc-Vocal-ensembles-1" href="Vocal-ensembles.fr.html#Vocal-ensembles">A.4 Vocal ensembles</a> </li>
<li><a name="toc-Ancient-notation-templates-1" href="Ancient-notation-templates.fr.html#Ancient-notation-templates">A.5 Ancient notation templates</a> </li>
<li><a name="toc-Jazz-combo-1" href="Jazz-combo.fr.html#Jazz-combo">A.6 Jazz combo</a> </li>
<li><a name="toc-lilypond_002dbook-templates-1" href="lilypond_002dbook-templates.fr.html#lilypond_002dbook-templates">A.7 lilypond-book templates</a> </li>
</ul>
</li>
<li><a name="toc-Scheme-tutorial-1" href="Scheme-tutorial.fr.html#Scheme-tutorial">B. Scheme tutorial</a>
<ul class="toc">
<li><a name="toc-Tweaking-with-Scheme-1" href="Tweaking-with-Scheme.fr.html#Tweaking-with-Scheme">B.1 Tweaking with Scheme</a> </li>
</ul>
</li>
<li><a name="toc-GNU-Free-Documentation-License-1" href="GNU-Free-Documentation-License.fr.html#GNU-Free-Documentation-License">C. GNU Free Documentation License</a> </li>
<li><a name="toc-LilyPond-index-1" href="LilyPond-index.fr.html#LilyPond-index">D. LilyPond index</a> </li>
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