<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<!-- header_tag -->
<html lang="en">
<head>
<title>Using variables for tweaks - GNU LilyPond Learning Manual</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="description" content="GNU LilyPond Learning Manual">
<meta name="generator" content="makeinfo 4.11">
<link title="Top" rel="start" href="index.de.html#Top">
<link rel="up" href="Further-tweaking.de.html#Further-tweaking" title="Further tweaking">
<link rel="prev" href="Other-uses-for-tweaks.de.html#Other-uses-for-tweaks" title="Other uses for tweaks">
<link rel="next" href="Other-sources-of-information.de.html#Other-sources-of-information" title="Other sources of information">
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
<!--
Copyright (C) 1999--2007 by the authors
Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License,
Version 1.1 or any later version published by the Free Software
Foundation; with no Invariant Sections. A copy of the license is
included in the section entitled ``GNU Free Documentation
License''.
-->
<meta http-equiv="Content-Style-Type" content="text/css">
<style type="text/css"><!--
pre.display { font-family:inherit }
pre.format { font-family:inherit }
pre.smalldisplay { font-family:inherit; font-size:smaller }
pre.smallformat { font-family:inherit; font-size:smaller }
pre.smallexample { font-size:smaller }
pre.smalllisp { font-size:smaller }
span.sc { font-variant:small-caps }
span.roman { font-family:serif; font-weight:normal; }
span.sansserif { font-family:sans-serif; font-weight:normal; }
hr { border:0; height:1; color: #000000; background-color: #000000; }
/* hr {
border: none;
height: 1px;
color: #666666;
background-color: #666666;
}
body {
border-left: 1px solid #666666;
border-right: 1px solid #666666;
color: #332d28;
margin-right: auto;
margin-left: auto;
width: 60em;
list-style-type: square;
font-family: Arial,Helvetica,sans-serif;
padding-right: 1em;
padding-left: 1em;
}
a {
border-bottom: 1px dashed #344242;
text-decoration: none;
color: #344242;
}
a:link {
text-decoration: none;
}
a:visited {
border-bottom: 1px dashed #666666;
color: #666666;
}
a:active {
border-bottom: 1px solid #00cccc;
color: #00cccc;
}
a:hover {
border-bottom: 1px solid #1d7b85;
color: #1d7b85;
}
blockquote {
border: 1px solid #cccccc;
padding: 3px;
width: 40em;
}
.node {
border-left: 1px solid #666666;
margin: -0.5em 0px 1em;
padding: 2px 1px 0px;
font-style: italic;
}
.node a {
border: none;
text-decoration: underline;
font-style: normal;
font-weight: bold;
}
.verbatim {
font-family: "Courier New",Courier,monospace;
}
.unnumberedsubsubsec {
font-size: large;
color: #1d7b85;
}
.subsubheading {
font-size: large;
color: #3b220d;
}
.contents {
border: 1px dashed #339999;
margin: 3px 2em;
list-style-type: square;
padding-right: 1em;
width: 40em;
background-color: #fcfff9;
}
.contents a {
border-bottom: 1px dashed #423d34;
text-decoration: none;
color: #423d34;
}
.contents a:visited {
border-bottom: 1px dashed #666666;
color: #666666;
}
.contents a:active {
border-bottom: 1px solid #f0d86d;
color: #f0d86d;
}
.contents a:hover {
border-bottom: 1px solid #3b220d;
color: #3b220d;
}
.menu {
border-left: 1px dashed #339999;
margin: 3px 2em 1em;
list-style-type: square;
padding-left: 1.4em;
width: 40em;
}
.unnumbered {
}
h2 {
font-size: x-large;
color: #1d7b85;
}
*/
--></style>
</head>
<BODY BGCOLOR=WHITE TEXT=BLACK>
<div class="node">
<p>
<a name="Using-variables-for-tweaks"></a>
Next: <a rel="next" accesskey="n" href="Other-sources-of-information.de.html#Other-sources-of-information">Other sources of information</a>,
Previous: <a rel="previous" accesskey="p" href="Other-uses-for-tweaks.de.html#Other-uses-for-tweaks">Other uses for tweaks</a>,
Up: <a rel="up" accesskey="u" href="Further-tweaking.de.html#Further-tweaking">Further tweaking</a>
<hr>
</div>
<h4 class="subsection">4.6.2 Using variables for tweaks</h4>
<p>Override commands are often long and tedious to type, and they
have to be absolutely correct. If the same overrides are to be
used many times it may be worth defining variables to hold them.
Suppose we wish to emphasize certain words in lyrics by printing
them in bold italics. The <code>\italic</code> and <code>\bold</code>
commands only work within lyrics if they are also embedded in
<code>\markup</code>, which makes them tedious to enter, so as an
alternative can we instead use the <code>\override</code> and
<code>\revert</code> commands?
<pre class="example"><code>\override Lyrics . LyricText #'font-shape = #'italic</code>
<code>\override Lyrics . LyricText #'font-series = #'bold</code>
<code>\revert Lyrics . LyricText #'font-shape</code>
<code>\revert Lyrics . LyricText #'font-series</code>
</pre>
<p>These would also be extremely tedious to enter if there were many
words requiring emphasis. So instead we define these as two
variables, and use them as follows, although normally we would
perhaps choose shorter names for the variables to make them
quicker to type:
<blockquote>
<pre class="verbatim">
emphasize = {
\override Lyrics . LyricText #'font-shape = #'italic
\override Lyrics . LyricText #'font-series = #'bold
}
normal = {
\revert Lyrics . LyricText #'font-shape
\revert Lyrics . LyricText #'font-series
}
global = { \time 4/4 \partial 4 \key c \major}
SopranoMusic = \relative c' { c4 | e4. e8 g4 g | a a g }
AltoMusic = \relative c' { c4 | c4. c8 e4 e | f f e }
TenorMusic = \relative c { e4 | g4. g8 c4. b8 | a8 b c d e4 }
BassMusic = \relative c { c4 | c4. c8 c4 c | f8 g a b c4 }
VerseOne = \lyrics { E -- | ter -- nal \emphasize Fa -- ther, \normal | strong to save, }
VerseTwo = \lyricmode { O | \emphasize Christ, \normal whose voice the | wa -- ters heard, }
VerseThree = \lyricmode { O | \emphasize Ho -- ly Spi -- rit, \normal | who didst brood }
VerseFour = \lyricmode { O | \emphasize Tri -- ni -- ty \normal of | love and pow'r }
\score {
\new ChoirStaff <<
\new Staff <<
\clef "treble"
\new Voice = "Soprano" { \voiceOne \global \SopranoMusic }
\new Voice = "Alto" { \voiceTwo \AltoMusic }
\new Lyrics \lyricsto "Soprano" { \VerseOne }
\new Lyrics \lyricsto "Soprano" { \VerseTwo }
\new Lyrics \lyricsto "Soprano" { \VerseThree }
\new Lyrics \lyricsto "Soprano" { \VerseFour }
>>
\new Staff <<
\clef "bass"
\new Voice = "Tenor" { \voiceOne \TenorMusic }
\new Voice = "Bass" { \voiceTwo \BassMusic }
>>
>>
}
</pre>
<p>
<a href="../82/lily-31aac517.ly">
<img align="middle"
border="0" src="../82/lily-31aac517.png" alt="[image of music]">
</a>
</p>
</blockquote>
<!-- footer_tag --><br><hr>
<div class="node">
<p>
Next: <a rel="next" accesskey="n" href="Other-sources-of-information.de.html#Other-sources-of-information">Other sources of information</a>,
Previous: <a rel="previous" accesskey="p" href="Other-uses-for-tweaks.de.html#Other-uses-for-tweaks">Other uses for tweaks</a>,
Up: <a rel="up" accesskey="u" href="Further-tweaking.de.html#Further-tweaking">Further tweaking</a>
</div>
<div style="background-color: #e8ffe8; padding: 2; border: #c0ffc0 1px solid;">
<p>
<font size="-1">
Diese Seite ist für LilyPond-2.11.57 (Entwicklungszweig).
<br>
<address>
Fehler bitte an <a href="http://post.gmane.org/post.php?group=gmane.comp.gnu.lilypond.bugs">http://post.gmane.org/post.php?group=gmane.comp.gnu.lilypond.bugs</a> melden. </address>
<br>
Ihre <a href="http://lilypond.org/web/devel/participating/documentation-adding">Vorschläge für die Dokumentation</a> sind willkommen.
</font>
</p>
</div>
<P>
Andere Sprachen: <a href="Using-variables-for-tweaks.es.html">español</a>.
<BR>
</P>
</BODY></html>
