<degree-value>

<harmony default-y="40">
   <root>
      <root-step>A</root-step>
   </root>
   <kind halign="center" text="m7">minor-seventh</kind>
   <degree>
      <degree-value>13</degree-value>
      <degree-alter>-1</degree-alter>
      <degree-type text="">add</degree-type>
   </degree>
</harmony>