transpose 

If the part is being encoded for a transposing instrument in written vs. concert pitch, the transposition must be encoded in the transpose element using the transpose type.

Element Information

Model

diatonic{0,1} , chromatic , octave-change{0,1} , double{0,1}
Children: chromatic, diatonic, double, octave-change

Source 

<xs:element name="transpose" type="transpose" minOccurs="0">
  <xs:annotation>
    <xs:documentation>If the part is being encoded for a transposing instrument in written vs. concert pitch, the transposition must be encoded in the transpose element using the transpose type.</xs:documentation>
  </xs:annotation>
</xs:element>

Sample