mei:mei_data.ACCIDENTAL.EXPLICIT

<xs:simpleType name="mei_data.ACCIDENTAL.EXPLICIT">
  <xs:restriction base="xs:token">
    <xs:enumeration value="s">
      <xs:annotation>
        <xs:documentation>Sharp.</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="f">
      <xs:annotation>
        <xs:documentation>Flat.</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="ss">
      <xs:annotation>
        <xs:documentation>Double sharp (written as 2 sharps).</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="x">
      <xs:annotation>
        <xs:documentation>Double sharp (written using croix).</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="ff">
      <xs:annotation>
        <xs:documentation>Double flat.</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="xs">
      <xs:annotation>
        <xs:documentation>Triple sharp (written as a croix followed by a sharp).</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="sx">
      <xs:annotation>
        <xs:documentation>Triple sharp (written as a sharp followed by a croix).</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="ts">
      <xs:annotation>
        <xs:documentation>Triple sharp (written as 3 sharps).</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="tf">
      <xs:annotation>
        <xs:documentation>Triple flat.</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="n">
      <xs:annotation>
        <xs:documentation>Natural.</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="nf">
      <xs:annotation>
        <xs:documentation>Natural + flat; used to cancel preceding double flat.</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="ns">
      <xs:annotation>
        <xs:documentation>Natural + sharp; used to cancel preceding double sharp.</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="su">
      <xs:annotation>
        <xs:documentation>Sharp note raised by quarter tone (sharp modified by arrow).</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="sd">
      <xs:annotation>
        <xs:documentation>Sharp note lowered by quarter tone (sharp modified by arrow).</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="fu">
      <xs:annotation>
        <xs:documentation>Flat note raised by quarter tone (flat modified by arrow).</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="fd">
      <xs:annotation>
        <xs:documentation>Flat note lowered by quarter tone (flat modified by arrow).</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="nu">
      <xs:annotation>
        <xs:documentation>Natural note raised by quarter tone (natural modified by arrow).</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="nd">
      <xs:annotation>
        <xs:documentation>Natural note lowered by quarter tone (natural modified by arrow).</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="1qf">
      <xs:annotation>
        <xs:documentation>1/4-tone flat accidental.</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="3qf">
      <xs:annotation>
        <xs:documentation>3/4-tone flat accidental.</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="1qs">
      <xs:annotation>
        <xs:documentation>1/4-tone sharp accidental.</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="3qs">
      <xs:annotation>
        <xs:documentation>3/4-tone sharp accidental.</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
  </xs:restriction>
</xs:simpleType>