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<tr><td valign="middle" align="left" colspan="1">[<a href="Changing-defaults.fr.html#Changing-defaults" title="Beginning of this chapter or previous chapter"> << Changing defaults </a>]</td><td valign="middle" align="center" colspan="3">[<a href="index.fr.html#index" title="Cover (top) of document" rel="start">Top</a>][<a href="index_toc.fr.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="LilyPond-command-index.fr.html#LilyPond-command-index" title="Index" rel="index">Index</a>][<a href="index_abt.fr.html#SEC_About" title="About (help)" rel="help"> ? </a>]</td><td valign="middle" align="right" colspan="1">[<a href="Interfaces-for-programmers.fr.html#Interfaces-for-programmers" title="Next chapter"> Interfaces for programmers >> </a>]</td></tr><tr><td valign="middle" align="left" colspan="2">[<a href="Visibility-of-objects.fr.html#Special-considerations" title="Previous section in reading order" accesskey="p" rel="previous"> < Special considerations </a>]</td><td valign="middle" align="center" colspan="1">[<a href="Useful-concepts-and-properties.fr.html#Useful-concepts-and-properties" title="Up section" accesskey="u" rel="up"> Up : Useful concepts and properties </a>]</td><td valign="middle" align="right" colspan="2">[<a href="Rotating-objects.fr.html#Rotating-objects" title="Next section in reading order" accesskey="n" rel="next"> Rotating objects > </a>]</td></tr></table>
<a name="Line-styles"></a>
<h3 class="subsection">5.4.7 Line styles</h3>
<p>Some performance indications, e.g., <i>rallentando</i> and
<i>accelerando</i> and <i>trills</i> are written as text and are
extended over many measures with lines, sometimes dotted or wavy.
</p>
<p>These all use the same routines as the glissando for drawing the
texts and the lines, and tuning their behavior is therefore also
done in the same way. It is done with a spanner, and the routine
responsible for drawing the spanners is
<code>ly:line-interface::print</code>. This routine determines the
exact location of the two <i>span points</i> and draws a line
between them, in the style requested.
</p>
<p>Here is an example showing the different line styles available,
and how to tune them.
</p>
<pre class="verbatim">d2 \glissando d'2
\once \override Glissando #'style = #'dashed-line
d,2 \glissando d'2
\override Glissando #'style = #'dotted-line
d,2 \glissando d'2
\override Glissando #'style = #'zigzag
d,2 \glissando d'2
\override Glissando #'style = #'trill
d,2 \glissando d'2
</pre><p>
<a href="../ef/lily-1a927a72.ly">
<img align="middle"
border="0"
src="../ef/lily-1a927a72.png"
alt="[image of music]">
</a>
</p>
<p>The locations of the end-points of the spanner are computed
on-the-fly for every graphic object, but it is possible to
override these:
</p>
<pre class="verbatim">e2 \glissando f
\once \override Glissando #'(bound-details right Y) = #-2
e2 \glissando f
</pre><p>
<a href="../7a/lily-9c6445a6.ly">
<img align="middle"
border="0"
src="../7a/lily-9c6445a6.png"
alt="[image of music]">
</a>
</p>
<p>The value for <code>Y</code> is set to <code>-2</code> for the right end
point. The left side may be similarly adjusted by specifying
<code>left</code> instead of <code>right</code>.
</p>
<p>If <code>Y</code> is not set, the value is computed from the vertical
position of the left and right attachment points of the spanner.
</p>
<p>Other adjustments of spanners are possible, for details, see
<a href="Spanners.fr.html#Spanners">Spanners</a>.
</p>
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<h4 class="toc_header"> <a href="index.fr.html#index" title="Start of the manual">Notation Reference</a></h4>
<div class="contents">
<ul class="toc">
<li><a name="toc-Musical-notation-1" href="Musical-notation.fr.html#Musical-notation">1. Musical notation</a>
<ul class="toc">
<li><a name="toc-Pitches-1" href="Pitches.fr.html#Pitches">1.1 Pitches</a> </li>
<li><a name="toc-Rhythms-1" href="Rhythms.fr.html#Rhythms">1.2 Rhythms</a> </li>
<li><a name="toc-Expressive-marks-1" href="Expressive-marks.fr.html#Expressive-marks">1.3 Expressive marks</a> </li>
<li><a name="toc-Repeats-1" href="Repeats.fr.html#Repeats">1.4 Repeats</a> </li>
<li><a name="toc-Simultaneous-notes-1" href="Simultaneous-notes.fr.html#Simultaneous-notes">1.5 Simultaneous notes</a> </li>
<li><a name="toc-Staff-notation-1" href="Staff-notation.fr.html#Staff-notation">1.6 Staff notation</a> </li>
<li><a name="toc-Editorial-annotations-1" href="Editorial-annotations.fr.html#Editorial-annotations">1.7 Editorial annotations</a> </li>
<li><a name="toc-Text-1" href="Text.fr.html#Text">1.8 Text</a> </li>
</ul>
</li>
<li><a name="toc-Specialist-notation-1" href="Specialist-notation.fr.html#Specialist-notation">2. Specialist notation</a>
<ul class="toc">
<li><a name="toc-Vocal-music-1" href="Vocal-music.fr.html#Vocal-music">2.1 Vocal music</a> </li>
<li><a name="toc-Keyboard-and-other-multi_002dstaff-instruments-1" href="Keyboard-and-other-multi_002dstaff-instruments.fr.html#Keyboard-and-other-multi_002dstaff-instruments">2.2 Keyboard and other multi-staff instruments</a> </li>
<li><a name="toc-Unfretted-string-instruments-1" href="Unfretted-string-instruments.fr.html#Unfretted-string-instruments">2.3 Unfretted string instruments</a> </li>
<li><a name="toc-Fretted-string-instruments-1" href="Fretted-string-instruments.fr.html#Fretted-string-instruments">2.4 Fretted string instruments</a> </li>
<li><a name="toc-Percussion-1" href="Percussion.fr.html#Percussion">2.5 Percussion</a> </li>
<li><a name="toc-Wind-instruments-1" href="Wind-instruments.fr.html#Wind-instruments">2.6 Wind instruments</a> </li>
<li><a name="toc-Chord-notation-1" href="Chord-notation.fr.html#Chord-notation">2.7 Chord notation</a> </li>
<li><a name="toc-Ancient-notation-1" href="Ancient-notation.fr.html#Ancient-notation">2.8 Ancient notation</a> </li>
<li><a name="toc-World-music-1" href="World-music.fr.html#World-music">2.9 World music</a> </li>
</ul>
</li>
<li><a name="toc-General-input-and-output-1" href="General-input-and-output.fr.html#General-input-and-output">3. General input and output</a>
<ul class="toc">
<li><a name="toc-Input-structure-1" href="Input-structure.fr.html#Input-structure">3.1 Input structure</a> </li>
<li><a name="toc-Titles-and-headers-1" href="Titles-and-headers.fr.html#Titles-and-headers">3.2 Titles and headers</a> </li>
<li><a name="toc-Working-with-input-files-1" href="Working-with-input-files.fr.html#Working-with-input-files">3.3 Working with input files</a> </li>
<li><a name="toc-Controlling-output-1" href="Controlling-output.fr.html#Controlling-output">3.4 Controlling output</a> </li>
<li><a name="toc-MIDI-output-1" href="MIDI-output.fr.html#MIDI-output">3.5 MIDI output</a> </li>
</ul>
</li>
<li><a name="toc-Spacing-issues-1" href="Spacing-issues.fr.html#Spacing-issues">4. Spacing issues</a>
<ul class="toc">
<li><a name="toc-Paper-and-pages-1" href="Paper-and-pages.fr.html#Paper-and-pages">4.1 Paper and pages</a> </li>
<li><a name="toc-Music-layout-1" href="Music-layout.fr.html#Music-layout">4.2 Music layout</a> </li>
<li><a name="toc-Breaks-1" href="Breaks.fr.html#Breaks">4.3 Breaks</a> </li>
<li><a name="toc-Vertical-spacing-1" href="Vertical-spacing.fr.html#Vertical-spacing">4.4 Vertical spacing</a> </li>
<li><a name="toc-Horizontal-spacing-1" href="Horizontal-spacing.fr.html#Horizontal-spacing">4.5 Horizontal spacing</a> </li>
<li><a name="toc-Fitting-music-onto-fewer-pages-1" href="Fitting-music-onto-fewer-pages.fr.html#Fitting-music-onto-fewer-pages">4.6 Fitting music onto fewer pages</a> </li>
</ul>
</li>
<li class="toc_current"><a name="toc-Changing-defaults-1" href="Changing-defaults.fr.html#Changing-defaults">5. Changing defaults</a>
<ul class="toc">
<li><a name="toc-Interpretation-contexts-1" href="Interpretation-contexts.fr.html#Interpretation-contexts">5.1 Interpretation contexts</a> </li>
<li><a name="toc-Explaining-the-Internals-Reference-1" href="Explaining-the-Internals-Reference.fr.html#Explaining-the-Internals-Reference">5.2 Explaining the Internals Reference</a> </li>
<li><a name="toc-Modifying-properties-1" href="Modifying-properties.fr.html#Modifying-properties">5.3 Modifying properties</a> </li>
<li class="toc_current"><a name="toc-Useful-concepts-and-properties-1" href="Useful-concepts-and-properties.fr.html#Useful-concepts-and-properties">5.4 Useful concepts and properties</a>
<ul class="toc">
<li><a name="toc-Input-modes-1" href="Input-modes.fr.html#Input-modes">5.4.1 Input modes</a> </li>
<li><a name="toc-Direction-and-placement-1" href="Direction-and-placement.fr.html#Direction-and-placement">5.4.2 Direction and placement</a> </li>
<li><a name="toc-Distances-and-measurements-1" href="Distances-and-measurements.fr.html#Distances-and-measurements">5.4.3 Distances and measurements</a> </li>
<li><a name="toc-Staff-symbol-properties-1" href="Staff-symbol-properties.fr.html#Staff-symbol-properties">5.4.4 Staff symbol properties</a> </li>
<li><a name="toc-Spanners-1" href="Spanners.fr.html#Spanners">5.4.5 Spanners</a> </li>
<li><a name="toc-Visibility-of-objects-1" href="Visibility-of-objects.fr.html#Visibility-of-objects">5.4.6 Visibility of objects</a> </li>
<li class="toc_current"><a name="toc-Line-styles-1" href="Line-styles.fr.html#Line-styles">5.4.7 Line styles</a> </li>
<li><a name="toc-Rotating-objects-1" href="Rotating-objects.fr.html#Rotating-objects">5.4.8 Rotating objects</a> </li>
</ul>
</li>
<li><a name="toc-Advanced-tweaks-1" href="Advanced-tweaks.fr.html#Advanced-tweaks">5.5 Advanced tweaks</a> </li>
</ul>
</li>
<li><a name="toc-Interfaces-for-programmers-1" href="Interfaces-for-programmers.fr.html#Interfaces-for-programmers">6. Interfaces for programmers</a>
<ul class="toc">
<li><a name="toc-Music-functions-1" href="Music-functions.fr.html#Music-functions">6.1 Music functions</a> </li>
<li><a name="toc-Programmer-interfaces-1" href="Programmer-interfaces.fr.html#Programmer-interfaces">6.2 Programmer interfaces</a> </li>
<li><a name="toc-Building-complicated-functions-1" href="Building-complicated-functions.fr.html#Building-complicated-functions">6.3 Building complicated functions</a> </li>
<li><a name="toc-Markup-programmer-interface-1" href="Markup-programmer-interface.fr.html#Markup-programmer-interface">6.4 Markup programmer interface</a> </li>
<li><a name="toc-Contexts-for-programmers-1" href="Contexts-for-programmers.fr.html#Contexts-for-programmers">6.5 Contexts for programmers</a> </li>
<li><a name="toc-Scheme-procedures-as-properties-1" href="Scheme-procedures-as-properties.fr.html#Scheme-procedures-as-properties">6.6 Scheme procedures as properties</a> </li>
<li><a name="toc-Using-Scheme-code-instead-of-_005ctweak-1" href="Using-Scheme-code-instead-of-_005ctweak.fr.html#Using-Scheme-code-instead-of-_005ctweak">6.7 Using Scheme code instead of <code>\tweak</code></a> </li>
<li><a name="toc-Difficult-tweaks-1" href="Difficult-tweaks.fr.html#Difficult-tweaks">6.8 Difficult tweaks</a> </li>
</ul>
</li>
<li><a name="toc-Literature-list-1" href="Literature-list.fr.html#Literature-list">A. Literature list</a> </li>
<li><a name="toc-Notation-manual-tables-1" href="Notation-manual-tables.fr.html#Notation-manual-tables">B. Notation manual tables</a>
<ul class="toc">
<li><a name="toc-Chord-name-chart-1" href="Chord-name-chart.fr.html#Chord-name-chart">B.1 Chord name chart</a> </li>
<li><a name="toc-Common-chord-modifiers-1" href="Common-chord-modifiers.fr.html#Common-chord-modifiers">B.2 Common chord modifiers</a> </li>
<li><a name="toc-Predefined-fretboard-diagrams-1" href="Predefined-fretboard-diagrams.fr.html#Predefined-fretboard-diagrams">B.3 Predefined fretboard diagrams</a> </li>
<li><a name="toc-MIDI-instruments-1" href="MIDI-instruments.fr.html#MIDI-instruments">B.4 MIDI instruments</a> </li>
<li><a name="toc-List-of-colors-1" href="List-of-colors.fr.html#List-of-colors">B.5 List of colors</a> </li>
<li><a name="toc-The-Feta-font-1" href="The-Feta-font.fr.html#The-Feta-font">B.6 The Feta font</a> </li>
<li><a name="toc-Note-head-styles-1" href="Note-head-styles.fr.html#Note-head-styles">B.7 Note head styles</a> </li>
<li><a name="toc-Text-markup-commands-1" href="Text-markup-commands.fr.html#Text-markup-commands">B.8 Text markup commands</a> </li>
<li><a name="toc-Text-markup-list-commands-1" href="Text-markup-list-commands.fr.html#Text-markup-list-commands">B.9 Text markup list commands</a> </li>
<li><a name="toc-List-of-articulations-1" href="List-of-articulations.fr.html#List-of-articulations">B.10 List of articulations</a> </li>
<li><a name="toc-Percussion-notes-1" href="Percussion-notes.fr.html#Percussion-notes">B.11 Percussion notes</a> </li>
<li><a name="toc-All-context-properties-1" href="All-context-properties.fr.html#All-context-properties">B.12 All context properties</a> </li>
<li><a name="toc-Layout-properties-1" href="Layout-properties.fr.html#Layout-properties">B.13 Layout properties</a> </li>
<li><a name="toc-Identifiers-1" href="Identifiers.fr.html#Identifiers">B.14 Identifiers</a> </li>
<li><a name="toc-Scheme-functions-1" href="Scheme-functions.fr.html#Scheme-functions">B.15 Scheme functions</a> </li>
</ul>
</li>
<li><a name="toc-Cheat-sheet-1" href="Cheat-sheet.fr.html#Cheat-sheet">C. Cheat sheet</a> </li>
<li><a name="toc-LilyPond-grammar-1" href="LilyPond-grammar.fr.html#LilyPond-grammar">D. LilyPond grammar</a> </li>
<li><a name="toc-GNU-Free-Documentation-License-1" href="GNU-Free-Documentation-License.fr.html#GNU-Free-Documentation-License">E. GNU Free Documentation License</a> </li>
<li><a name="toc-LilyPond-command-index-1" href="LilyPond-command-index.fr.html#LilyPond-command-index">F. LilyPond command index</a> </li>
<li><a name="toc-LilyPond-index-1" href="LilyPond-index.fr.html#LilyPond-index">G. LilyPond index</a> </li>
</ul>
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