dden="true">LFO</a></h3>
  <dl>
  <dt>Rate</dt>
  <dd>
  <p>Rate of LFO.</p>
  <p>When <code>Sync.</code> is turned off, <code>Rate</code> becomes
  the frequency of LFO. When <code>Sync.</code> is turned on,
  <code>Rate</code> becomes the multiplier to the interval of
  synchronization. For example, if <code>Rate</code> is 2 and
  <code>Sync.</code> is turned off, LFO cycles at 2 Hz. If
  <code>Rate</code> is 2 and <code>Sync.</code> is turned on, the
  interval of synchronization becomes half (1/2).</p>
