mei:mei_data.GRACE

<xs:simpleType name="mei_data.GRACE">
  <xs:restriction base="xs:token">
    <xs:enumeration value="acc">
      <xs:annotation>
        <xs:documentation>Time "stolen" from following note.</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="unacc">
      <xs:annotation>
        <xs:documentation>Time "stolen" from previous note.</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="unknown">
      <xs:annotation>
        <xs:documentation>No interpretation regarding performed value of grace note.</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
  </xs:restriction>
</xs:simpleType>