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<h1>Create a music track</h1>
<small class="dont-index">Source: <a href='https://github.com/leonawicz/tabr/blob/master/R/tracks.R'><code>R/tracks.R</code></a></small>
<div class="hidden name"><code>track.Rd</code></div>
</div>
<div class="ref-description">
<p>Create a music track from a collection of musical phrases.</p>
</div>
<pre class="usage"><span class='fu'>track</span><span class='op'>(</span>
<span class='va'>phrase</span>,
clef <span class='op'>=</span> <span class='st'>"treble_8"</span>,
key <span class='op'>=</span> <span class='cn'>NA</span>,
tab <span class='op'>=</span> <span class='cn'>TRUE</span>,
tuning <span class='op'>=</span> <span class='st'>"standard"</span>,
voice <span class='op'>=</span> <span class='fl'>1</span>,
lyrics <span class='op'>=</span> <span class='cn'>NA</span>
<span class='op'>)</span>
<span class='fu'>track_guitar</span><span class='op'>(</span>
<span class='va'>phrase</span>,
clef <span class='op'>=</span> <span class='st'>"treble_8"</span>,
key <span class='op'>=</span> <span class='cn'>NA</span>,
tab <span class='op'>=</span> <span class='cn'>TRUE</span>,
tuning <span class='op'>=</span> <span class='st'>"standard"</span>,
voice <span class='op'>=</span> <span class='fl'>1</span>,
lyrics <span class='op'>=</span> <span class='cn'>NA</span>
<span class='op'>)</span>
<span class='fu'>track_tc</span><span class='op'>(</span><span class='va'>phrase</span>, key <span class='op'>=</span> <span class='cn'>NA</span>, voice <span class='op'>=</span> <span class='fl'>1</span>, lyrics <span class='op'>=</span> <span class='cn'>NA</span><span class='op'>)</span>
<span class='fu'>track_bc</span><span class='op'>(</span><span class='va'>phrase</span>, key <span class='op'>=</span> <span class='cn'>NA</span>, voice <span class='op'>=</span> <span class='fl'>1</span>, lyrics <span class='op'>=</span> <span class='cn'>NA</span><span class='op'>)</span>
<span class='fu'>track_bass</span><span class='op'>(</span><span class='va'>phrase</span>, key <span class='op'>=</span> <span class='cn'>NA</span>, voice <span class='op'>=</span> <span class='fl'>1</span>, lyrics <span class='op'>=</span> <span class='cn'>NA</span><span class='op'>)</span></pre>
<h2 class="hasAnchor" id="arguments"><a class="anchor" href="#arguments"></a>Arguments</h2>
<table class="ref-arguments">
<colgroup><col class="name" /><col class="desc" /></colgroup>
<tr>
<th>phrase</th>
<td><p>a phrase object.</p></td>
</tr>
<tr>
<th>clef</th>
<td><p>character, include a music staff with the given clef.
<code>NA</code> to suppress. See details.</p></td>
</tr>
<tr>
<th>key</th>
<td><p>character, key signature for music staff. See details.</p></td>
</tr>
<tr>
<th>tab</th>
<td><p>logical, include tablature staff. <code>NA</code> to suppress.</p></td>
</tr>
<tr>
<th>tuning</th>
<td><p>character, pitches describing the instrument string tuning or
a predefined tuning ID (see <code><a href='tunings.html'>tunings</a></code>).
Defaults to standard guitar tuning; not relevant if tablature staff is
suppressed.</p></td>
</tr>
<tr>
<th>voice</th>
<td><p>integer, ID indicating the unique voice <code>phrase</code> belongs
to within a single track (another track may share the same tab/music staff
but have a different voice ID). Up to two voices are supported per track.</p></td>
</tr>
<tr>
<th>lyrics</th>
<td><p>a lyrics object or <code>NA</code>. See details.</p></td>
</tr>
</table>
<h2 class="hasAnchor" id="value"><a class="anchor" href="#value"></a>Value</h2>
<p>a tibble data frame</p>
<h2 class="hasAnchor" id="details"><a class="anchor" href="#details"></a>Details</h2>
<p>Musical phrases generated by <code><a href='phrase.html'>phrase</a></code> are fortified in a track
table. All tracks are stored as track tables, one per row, even if that
table consists of a single track.
<code>track</code> creates a single-entry track table.
See <code><a href='trackbind.html'>trackbind</a></code> for merging single tracks into a multi-track
table. This is row binding that also properly preserves phrase and track
classes.</p>
<p>There are various <code>track_*</code> functions offering sensible defaults based
on the function suffix. The original <code>track</code> function is equivalent to
<code>track_guitar</code>. See examples. Setting <code>clef = NA</code> or
<code>tab = NA</code> suppresses the music staff or tablature staff,
respectively. By default <code>key = NA</code>, in which
case its inherits the global key from the <code>key</code> argument of various
sheet music rendering functions. If planning to bind two tracks as one where
they are given <code>voice = 1</code> and <code>voice = 2</code>, respectively, they
must also have a common key, even if <code>key = NA</code>.</p>
<p><code>lyrics</code> should only be used for simple tracks that do not contain
repeats. You also need to ensure the timesteps for <code>lyrics</code> align with
those of <code>phrase</code> in advance. Additionally, LilyPond does not engrave
lyrics at rests or tied notes (excluding first note in tied sequence) so if
Therefore, if <code>phrase</code> contains rests and tied notes then the lyrics
object should be subset to exclude these timesteps as well.
This is in contrast to using <code>render_music*</code> functions, which handle
this automatically for music objects.</p>
<h2 class="hasAnchor" id="see-also"><a class="anchor" href="#see-also"></a>See also</h2>
<div class='dont-index'><p><code><a href='phrase.html'>phrase</a></code>, <code><a href='score.html'>score</a></code></p></div>
<h2 class="hasAnchor" id="examples"><a class="anchor" href="#examples"></a>Examples</h2>
<pre class="examples"><div class='input'><span class='va'>x</span> <span class='op'><-</span> <span class='fu'><a href='phrase.html'>phrase</a></span><span class='op'>(</span><span class='st'>"c ec'g' ec'g'"</span>, <span class='st'>"4 4 2"</span>, <span class='st'>"5 4 4"</span><span class='op'>)</span>
<span class='fu'>track</span><span class='op'>(</span><span class='va'>x</span><span class='op'>)</span> <span class='co'># same as track_guitar(x); 8va treble clef above tab staff</span>
</div><div class='output co'>#> <span style='color: #555555;'># A tibble: 1 x 7</span><span>
#> phrase clef key tab tuning voice lyrics
#> </span><span style='color: #555555;font-style: italic;'><list></span><span> </span><span style='color: #555555;font-style: italic;'><chr></span><span> </span><span style='color: #555555;font-style: italic;'><chr></span><span> </span><span style='color: #555555;font-style: italic;'><lgl></span><span> </span><span style='color: #555555;font-style: italic;'><chr></span><span> </span><span style='color: #555555;font-style: italic;'><int></span><span> </span><span style='color: #555555;font-style: italic;'><chr></span><span>
#> </span><span style='color: #555555;'>1</span><span> </span><span style='color: #555555;'><phrase [1]></span><span> treble_8 </span><span style='color: #BB0000;'>NA</span><span> TRUE e,a,dgbe' 1 </span><span style='color: #BB0000;'>NA</span><span> </div><div class='input'><span class='fu'>track_tc</span><span class='op'>(</span><span class='va'>x</span><span class='op'>)</span> <span class='co'># treble clef sheet music, no tab staff</span>
</div><div class='output co'>#> </span><span style='color: #555555;'># A tibble: 1 x 7</span><span>
#> phrase clef key tab tuning voice lyrics
#> </span><span style='color: #555555;font-style: italic;'><list></span><span> </span><span style='color: #555555;font-style: italic;'><chr></span><span> </span><span style='color: #555555;font-style: italic;'><chr></span><span> </span><span style='color: #555555;font-style: italic;'><lgl></span><span> </span><span style='color: #555555;font-style: italic;'><chr></span><span> </span><span style='color: #555555;font-style: italic;'><int></span><span> </span><span style='color: #555555;font-style: italic;'><chr></span><span>
#> </span><span style='color: #555555;'>1</span><span> </span><span style='color: #555555;'><phrase [1]></span><span> treble </span><span style='color: #BB0000;'>NA</span><span> FALSE e,a,dgbe' 1 </span><span style='color: #BB0000;'>NA</span><span> </div><div class='input'><span class='fu'>track_bc</span><span class='op'>(</span><span class='va'>x</span><span class='op'>)</span> <span class='co'># bass clef sheet music, no tab staff</span>
</div><div class='output co'>#> </span><span style='color: #555555;'># A tibble: 1 x 7</span><span>
#> phrase clef key tab tuning voice lyrics
#> </span><span style='color: #555555;font-style: italic;'><list></span><span> </span><span style='color: #555555;font-style: italic;'><chr></span><span> </span><span style='color: #555555;font-style: italic;'><chr></span><span> </span><span style='color: #555555;font-style: italic;'><lgl></span><span> </span><span style='color: #555555;font-style: italic;'><chr></span><span> </span><span style='color: #555555;font-style: italic;'><int></span><span> </span><span style='color: #555555;font-style: italic;'><chr></span><span>
#> </span><span style='color: #555555;'>1</span><span> </span><span style='color: #555555;'><phrase [1]></span><span> bass </span><span style='color: #BB0000;'>NA</span><span> FALSE e,a,dgbe' 1 </span><span style='color: #BB0000;'>NA</span><span> </div><div class='input'>
<span class='va'>x</span> <span class='op'><-</span> <span class='fu'><a href='phrase.html'>phrase</a></span><span class='op'>(</span><span class='st'>"c, g,c g,c"</span>, <span class='st'>"4 4 2"</span>, <span class='st'>"3 2 2"</span><span class='op'>)</span>
<span class='fu'>track_bass</span><span class='op'>(</span><span class='va'>x</span><span class='op'>)</span> <span class='co'># includes tab staff and standard bass tuning</span>
</div><div class='output co'>#> </span><span style='color: #555555;'># A tibble: 1 x 7</span><span>
#> phrase clef key tab tuning voice lyrics
#> </span><span style='color: #555555;font-style: italic;'><list></span><span> </span><span style='color: #555555;font-style: italic;'><chr></span><span> </span><span style='color: #555555;font-style: italic;'><chr></span><span> </span><span style='color: #555555;font-style: italic;'><lgl></span><span> </span><span style='color: #555555;font-style: italic;'><chr></span><span> </span><span style='color: #555555;font-style: italic;'><int></span><span> </span><span style='color: #555555;font-style: italic;'><chr></span><span>
#> </span><span style='color: #555555;'>1</span><span> </span><span style='color: #555555;'><phrase [1]></span><span> bass_8 </span><span style='color: #BB0000;'>NA</span><span> FALSE e,,a,,d,g, 1 </span><span style='color: #BB0000;'>NA</span><span> </div></span></pre>
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