.0 
                       (* fm-index (oscil md))))))))

(with-sound () (pm 0 1.0 100 .5 8 0))
(with-sound () (pm 0 1.0 100 .5 8 (* .5 pi)))
</pre>


<table class="borderedm">
<tr><td>
  <img src="pix/fmeq25.png" alt="mod phase 0">
</td><td>
  <img src="pix/fmeq26.png" alt="mod phase pi/2">
  </td></tr>
<tr><td class="bluishb">mod phase = 0.0
</td><td class="bluishb">mod phase = pi/2
</td></tr></table>


<div class="spacer"></div>

<p>There is a slight difference!  We're using phase-modulation for simplici