MusicXML 3.0 (22) - 强、弱、渐强、渐弱、渐快、渐慢

<?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>
          <dynamics>
            <f />
          </dynamics>
        </direction-type>
      </direction>
      <note>
        <rest />
        <duration>1024</duration>
      </note>
    </measure>
    <measure number="2">
      <direction>
        <direction-type>
          <dynamics>
            <ppp />
          </dynamics>
        </direction-type>
      </direction>
      <note>
        <rest />
        <duration>1024</duration>
      </note>
    </measure>
    <measure number="3">
      <direction>
        <direction-type>
          <wedge type="crescendo" />
        </direction-type>
      </direction>
      <note>
        <rest />
        <duration>1024</duration>
      </note>
      <direction>
        <direction-type>
          <wedge type="stop" />
        </direction-type>
      </direction>
    </measure>
    <measure number="4">
      <direction>
        <direction-type>
          <wedge type="diminuendo" />
        </direction-type>
      </direction>
      <note>
        <rest />
        <duration>1024</duration>
      </note>
      <direction>
        <direction-type>
          <wedge type="stop" />
        </direction-type>
      </direction>
    </measure>
    <measure number="5">
      <direction>
        <direction-type>
          <words>cresc.</words>
        </direction-type>
      </direction>
      <note>
        <rest />
        <duration>1024</duration>
      </note>
    </measure>
    <measure number="6">
      <direction>
        <direction-type>
          <words>dim.</words>
        </direction-type>
      </direction>
      <note>
        <rest />
        <duration>1024</duration>
      </note>
    </measure>
    <measure number="7">
      <direction>
        <direction-type>
          <words>accel.</words>
        </direction-type>
      </direction>
      <note>
        <rest />
        <duration>1024</duration>
      </note>
    </measure>
    <measure number="8">
      <direction>
        <direction-type>
          <words>rit.</words>
        </direction-type>
      </direction>
      <note>
        <rest />
        <duration>1024</duration>
      </note>
    </measure>
  </part>
</score-partwise>

效果图: