<sound>
In this example, MusicXML has two sound IDs for a single application sound. The primary attribute for the <sound> element specifies which MusicXML sound ID to use when exporting a MusicXML file.
<sounds>
<sound primary="yes" id="wind.reed.clarinet.a">
<solo>9d3e28eb-0640-41f7-9144-0fdef3046d7c</solo>
</sound>
<sound primary="yes" id="wind.reed.clarinet.bflat">
<solo>a16af0c1-8df8-476d-8d74-0d6e1972846b</solo>
</sound>
</sounds>