Basically i'm transforming one XML language into another. In doing this, I 
  have some code like the following:

  <xsl:template match="//prosody">

don't start a match pattern with // it doesn't do anything useful.
        ...
    <xsl:choose>
        <xsl:when test="@pitch='x-high'">
             <xsl:text>&lt;PITCH BASE="70%"&gt;</xsl:text>
                  <xsl:apply-templates/>

Why are you generating text not XML nodes? You lose much of teh benefit
of using XSLT if you do that.


<xsl:template match="prosody">
        ...
    <xsl:choose>
        <xsl:when test="@pitch='x-high'">
             <PITCH BASE="70%">
                  <xsl:apply-templates/>
             </PITCH>
  ....

David

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