  .1  .99 4    <span style="color: #b0c4de;">:id</span> 3)
<span class="prompt">SCRATCH&gt;</span> (set-control 0 <span style="color: #b0c4de;">:gate</span> 0)</pre>

      <p>
        The structure <code>TEMPO-ENVELOPE</code> is specific for a temporal
        envelope. The constructor is <code>MAKE-TEMPO-ENVELOPE</code>, and
        <code>SET-TEMPO-ENVELOPE</code> allows to change an existent instance.
      </p>

      <pre class="src src-lisp"><span style="color: #ff7f24;">;;; </span><span style="color: