MusicXML 4.1 Draft
MusicXML 4.1 Draft > MusicXML Reference > Examples > <transpose>

<transpose>

transpose-element

<attributes>
   <key>
      <fifths>1</fifths>
      <mode>major</mode>
   </key>
   <transpose>
      <diatonic>-4</diatonic>
      <chromatic>-7</chromatic>
   </transpose>
</attributes>