<span class="fu"><a href="Line.html">Line</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"C3"</span>, <span class="st">"D3"</span><span class="op">)</span><span class="op">)</span> <span class="op">+</span> <span class="va">clef</span></span></span>
<span class="r-in"><span><span class="va">music</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> Music </span>
<sp