MusicXML 4.1 Draft
MusicXML 4.1 Draft > MusicXML Reference > Examples > <part-name-display>

<part-name-display>

part-name-display-element

<part-name-display>
   <display-text>Clarinet in E</display-text>
   <accidental-text>flat</accidental-text>
</part-name-display>