MusicXML 3.0 (2) - 调号

<?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">             <!-- 第一小节 -->
      <attributes>                   
        <divisions>256</divisions>   
        <key>                        
          <fifths>0</fifths>         <!-- C 大调 -->
        </key>
        <time>
          <beats>4</beats>
          <beat-type>4</beat-type>   
        </time>
        <clef>
          <sign>G</sign>
          <line>2</line>             
        </clef>
      </attributes>
      <note>                         
        <pitch>                      
          <step>C</step>              <!-- 主音 -->
          <octave>4</octave>         
        </pitch>
        <duration>1024</duration>    
        <type>whole</type>           
      </note>
    </measure>
    <measure number="2">              <!-- 第二小节 -->
      <attributes>                   
        <key>                        
          <fifths>2</fifths>  
          <mode>major</mode>          <!-- D 大调 -->
        </key>
      </attributes>
      <note>                         
        <pitch>                      
          <step>D</step>
          <octave>4</octave>          <!-- 主音 -->
        </pitch>
        <duration>1024</duration>    
        <type>whole</type>           
      </note>
    </measure>
    <measure number="3">              <!-- 第三小节 -->
      <attributes>                   
        <key>                        
          <fifths>2</fifths>  
          <mode>minor</mode>          <!-- b 小调 -->
        </key>
      </attributes>
      <note>                         
        <pitch>                      
          <step>B</step>
          <octave>4</octave>          <!-- 主音 -->
        </pitch>
        <duration>1024</duration>    
        <type>whole</type>           
      </note>
    </measure>
    <measure number="4">              <!-- 第四小节 -->  
      <attributes>                   
        <key>                        
          <fifths>-6</fifths>  
          <mode>major</mode>          <!-- bD 大调 -->
        </key>
      </attributes>
      <note>                         
        <pitch>                      
          <step>D</step>
          <alter>-1</alter>           <!-- 主音 -->
          <octave>4</octave>         
        </pitch>
        <duration>1024</duration>    
        <type>whole</type>         
      </note>
    </measure>
  </part>
</score-partwise>

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效果图:

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