MusicXML 3.0 (19) - 八度

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE score-partwise PUBLIC "-//Recordare//DTD MusicXML 3.0 Partwise//EN" "http://www.musicxml.org/dtds/partwise.dtd">
<score-partwise version="3.0">
  <part-list>
    <score-part id="P1">
      <part-name>Piano</part-name>
    </score-part>
  </part-list>
  <part id="P1">
    <measure number="1">
      <attributes>
        <divisions>256</divisions>
        <key>
          <fifths>0</fifths>
        </key>
        <time>
          <beats>4</beats>
          <beat-type>4</beat-type>
        </time>
        <clef>
          <sign>G</sign>
          <line>2</line>
        </clef>
      </attributes>
      <direction>
        <direction-type>
          <octave-shift type="down" size="8" />
        </direction-type>
        <voice>1</voice>
        <staff>1</staff>
      </direction>
      <note>
        <rest />
        <duration>1024</duration>
      </note>
      <direction>
        <direction-type>
          <octave-shift type="stop" size="8" />
        </direction-type>
        <staff>1</staff>
      </direction>
    </measure>
    <measure number="2">
      <direction>
        <direction-type>
          <octave-shift type="up" size="8" />
        </direction-type>
        <staff>1</staff>
      </direction>
      <note>
        <rest />
        <duration>1024</duration>
      </note>
      <direction>
        <direction-type>
          <octave-shift type="stop" size="8" />
        </direction-type>
        <staff>1</staff>
      </direction>
    </measure>
    <measure number="3">
      <direction>
        <direction-type>
          <octave-shift type="down" size="15" />
        </direction-type>
        <staff>1</staff>
      </direction>
      <note>
        <rest />
        <duration>1024</duration>
      </note>
      <direction>
        <direction-type>
          <octave-shift type="stop" size="15" />
        </direction-type>
        <staff>1</staff>
      </direction>
    </measure>
    <measure number="4">
      <direction>
        <direction-type>
          <octave-shift type="up" size="15" />
        </direction-type>
        <staff>1</staff>
      </direction>
      <note>
        <rest />
        <duration>1024</duration>
      </note>
      <direction>
        <direction-type>
          <octave-shift type="stop" size="15" />
        </direction-type>
        <staff>1</staff>
      </direction>
    </measure>
  </part>
</score-partwise>

效果图: