LMX:
measure key:fifths:-3 clef:F4 staff:1 clef:F4 staff:2 B3 voice:1 half dot stem:up staff:1 tied:stop tied:start backup half backup quarter rest voice:2 quarter staff:1 C3 eighth stem:down chord E3 eighth chord G3 eighth flat rest eighth rest quarter backup half backup quarter rest voice:5 quarter staff:2 B1 eighth stem:up chord B2 eighth rest eighth rest quarter measure B3 voice:1 half stem:up staff:1 tied:stop tied:start B3 eighth tied:stop rest eighth backup half backup quarter rest voice:2 quarter staff:1 D3 eighth stem:down chord F3 eighth rest eighth rest quarter backup half backup quarter rest voice:5 quarter staff:2 B1 eighth stem:up chord B2 eighth rest eighth rest quarter measure key:fifths:-6 time beats:4 beat-type:4 E3 voice:1 eighth stem:down staff:1 chord G3 eighth chord C4 eighth rest eighth rest quarter rest half backup whole B1 voice:5 eighth flat-flat stem:up staff:2 chord B2 eighth flat-flat rest eighth rest quarter rest half


MusicXML:
<?xml version='1.0' encoding='utf-8'?>
<score-partwise version="3.1"><part-list><score-part id="P2"><part-name>Piano</part-name></score-part></part-list><part id="P2"><measure number="50" width="374.56">
      <print>
        <staff-layout number="1">
          <staff-distance>81.09</staff-distance>
          </staff-layout>
        <staff-layout number="2">
          <staff-distance>85.00</staff-distance>
          </staff-layout>
        </print>
      <attributes><divisions>12</divisions>
        <key>
          <fifths>-3</fifths>
          </key>
        <staves>2</staves>
        <clef number="1">
          <sign>F</sign>
          <line>4</line>
          </clef>
        <clef number="2">
          <sign>F</sign>
          <line>4</line>
          </clef>
        </attributes><note default-x="99.35" default-y="-116.09">
        <pitch>
          <step>B</step>
          <alter>-1</alter>
          <octave>3</octave>
          </pitch>
        <duration>36</duration>
        <tie type="stop" />
        <tie type="start" />
        <voice>1</voice>
        <type>half</type>
        <dot />
        <stem>up</stem>
        <staff>1</staff>
        <notations>
          <tied type="stop" />
          <tied type="start" />
          </notations>
        </note>
      <backup>
        <duration>36</duration>
        </backup>
      <note>
        <rest>
          <display-step>F</display-step>
          <display-octave>3</display-octave>
          </rest>
        <duration>12</duration>
        <voice>2</voice>
        <type>quarter</type>
        <staff>1</staff>
        </note>
      <note default-x="183.79" default-y="-146.09">
        <pitch>
          <step>C</step>
          <octave>3</octave>
          </pitch>
        <duration>6</duration>
        <voice>2</voice>
        <type>eighth</type>
        <stem>down</stem>
        <staff>1</staff>
        </note>
      <note default-x="183.79" default-y="-136.09">
        <chord />
        <pitch>
          <step>E</step>
          <alter>-1</alter>
          <octave>3</octave>
          </pitch>
        <duration>6</duration>
        <voice>2</voice>
        <type>eighth</type>
        <stem>down</stem>
        <staff>1</staff>
        </note>
      <note default-x="183.79" default-y="-126.09">
        <chord />
        <pitch>
          <step>G</step>
          <alter>-1</alter>
          <octave>3</octave>
          </pitch>
        <duration>6</duration>
        <voice>2</voice>
        <type>eighth</type>
        <accidental>flat</accidental>
        <stem>down</stem>
        <staff>1</staff>
        </note>
      <note>
        <rest>
          <display-step>F</display-step>
          <display-octave>3</display-octave>
          </rest>
        <duration>6</duration>
        <voice>2</voice>
        <type>eighth</type>
        <staff>1</staff>
        </note>
      <note>
        <rest>
          <display-step>F</display-step>
          <display-octave>3</display-octave>
          </rest>
        <duration>12</duration>
        <voice>2</voice>
        <type>quarter</type>
        <staff>1</staff>
        </note>
      <backup>
        <duration>36</duration>
        </backup>
      <note>
        <rest />
        <duration>12</duration>
        <voice>5</voice>
        <type>quarter</type>
        <staff>2</staff>
        </note>
      <note default-x="183.79" default-y="-311.09">
        <pitch>
          <step>B</step>
          <alter>-1</alter>
          <octave>1</octave>
          </pitch>
        <duration>6</duration>
        <voice>5</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>2</staff>
        </note>
      <note default-x="183.79" default-y="-276.09">
        <chord />
        <pitch>
          <step>B</step>
          <alter>-1</alter>
          <octave>2</octave>
          </pitch>
        <duration>6</duration>
        <voice>5</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>2</staff>
        </note>
      <note>
        <rest />
        <duration>6</duration>
        <voice>5</voice>
        <type>eighth</type>
        <staff>2</staff>
        </note>
      <note>
        <rest />
        <duration>12</duration>
        <voice>5</voice>
        <type>quarter</type>
        <staff>2</staff>
        </note>
      </measure>
    <measure number="51" width="307.60">
      <note default-x="10.58" default-y="-116.09">
        <pitch>
          <step>B</step>
          <alter>-1</alter>
          <octave>3</octave>
          </pitch>
        <duration>24</duration>
        <tie type="stop" />
        <tie type="start" />
        <voice>1</voice>
        <type>half</type>
        <stem>up</stem>
        <staff>1</staff>
        <notations>
          <tied type="stop" />
          <tied type="start" />
          </notations>
        </note>
      <note default-x="197.66" default-y="-116.09">
        <pitch>
          <step>B</step>
          <alter>-1</alter>
          <octave>3</octave>
          </pitch>
        <duration>6</duration>
        <tie type="stop" />
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        <notations>
          <tied type="stop" />
          </notations>
        </note>
      <note>
        <rest />
        <duration>6</duration>
        <voice>1</voice>
        <type>eighth</type>
        <staff>1</staff>
        </note>
      <backup>
        <duration>36</duration>
        </backup>
      <note>
        <rest>
          <display-step>F</display-step>
          <display-octave>3</display-octave>
          </rest>
        <duration>12</duration>
        <voice>2</voice>
        <type>quarter</type>
        <staff>1</staff>
        </note>
      <note default-x="93.93" default-y="-141.09">
        <pitch>
          <step>D</step>
          <octave>3</octave>
          </pitch>
        <duration>6</duration>
        <voice>2</voice>
        <type>eighth</type>
        <stem>down</stem>
        <staff>1</staff>
        </note>
      <note default-x="93.93" default-y="-131.09">
        <chord />
        <pitch>
          <step>F</step>
          <octave>3</octave>
          </pitch>
        <duration>6</duration>
        <voice>2</voice>
        <type>eighth</type>
        <stem>down</stem>
        <staff>1</staff>
        </note>
      <note>
        <rest>
          <display-step>F</display-step>
          <display-octave>3</display-octave>
          </rest>
        <duration>6</duration>
        <voice>2</voice>
        <type>eighth</type>
        <staff>1</staff>
        </note>
      <note>
        <rest>
          <display-step>F</display-step>
          <display-octave>3</display-octave>
          </rest>
        <duration>12</duration>
        <voice>2</voice>
        <type>quarter</type>
        <staff>1</staff>
        </note>
      <backup>
        <duration>36</duration>
        </backup>
      <note>
        <rest />
        <duration>12</duration>
        <voice>5</voice>
        <type>quarter</type>
        <staff>2</staff>
        </note>
      <note default-x="93.93" default-y="-311.09">
        <pitch>
          <step>B</step>
          <alter>-1</alter>
          <octave>1</octave>
          </pitch>
        <duration>6</duration>
        <voice>5</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>2</staff>
        </note>
      <note default-x="93.93" default-y="-276.09">
        <chord />
        <pitch>
          <step>B</step>
          <alter>-1</alter>
          <octave>2</octave>
          </pitch>
        <duration>6</duration>
        <voice>5</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>2</staff>
        </note>
      <note>
        <rest />
        <duration>6</duration>
        <voice>5</voice>
        <type>eighth</type>
        <staff>2</staff>
        </note>
      <note>
        <rest />
        <duration>12</duration>
        <voice>5</voice>
        <type>quarter</type>
        <staff>2</staff>
        </note>
      <barline location="right">
        <bar-style>light-light</bar-style>
        </barline>
      </measure>
    <measure number="52" width="523.46">
      <attributes>
        <key>
          <fifths>-6</fifths>
          </key>
        <time symbol="common">
          <beats>4</beats>
          <beat-type>4</beat-type>
          </time>
        </attributes>
      <direction placement="below">
        <direction-type>
          <dynamics default-x="3.29" default-y="-40.00" relative-x="-17.50" relative-y="-48.70">
            <f />
            </dynamics>
          </direction-type>
        <staff>1</staff>
        <sound dynamics="106.67" />
        </direction>
      <note default-x="123.55" default-y="-136.09">
        <pitch>
          <step>E</step>
          <alter>-1</alter>
          <octave>3</octave>
          </pitch>
        <duration>6</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>down</stem>
        <staff>1</staff>
        </note>
      <note default-x="123.55" default-y="-126.09">
        <chord />
        <pitch>
          <step>G</step>
          <alter>-1</alter>
          <octave>3</octave>
          </pitch>
        <duration>6</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>down</stem>
        <staff>1</staff>
        </note>
      <note default-x="123.55" default-y="-111.09">
        <chord />
        <pitch>
          <step>C</step>
          <alter>-1</alter>
          <octave>4</octave>
          </pitch>
        <duration>6</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>down</stem>
        <staff>1</staff>
        </note>
      <note>
        <rest />
        <duration>6</duration>
        <voice>1</voice>
        <type>eighth</type>
        <staff>1</staff>
        </note>
      <note>
        <rest />
        <duration>12</duration>
        <voice>1</voice>
        <type>quarter</type>
        <staff>1</staff>
        </note>
      <note>
        <rest />
        <duration>24</duration>
        <voice>1</voice>
        <type>half</type>
        <staff>1</staff>
        </note>
      <backup>
        <duration>48</duration>
        </backup>
      <note default-x="123.55" default-y="-311.09">
        <pitch>
          <step>B</step>
          <alter>-2</alter>
          <octave>1</octave>
          </pitch>
        <duration>6</duration>
        <voice>5</voice>
        <type>eighth</type>
        <accidental>flat-flat</accidental>
        <stem>up</stem>
        <staff>2</staff>
        </note>
      <note default-x="123.55" default-y="-276.09">
        <chord />
        <pitch>
          <step>B</step>
          <alter>-2</alter>
          <octave>2</octave>
          </pitch>
        <duration>6</duration>
        <voice>5</voice>
        <type>eighth</type>
        <accidental>flat-flat</accidental>
        <stem>up</stem>
        <staff>2</staff>
        </note>
      <note>
        <rest />
        <duration>6</duration>
        <voice>5</voice>
        <type>eighth</type>
        <staff>2</staff>
        </note>
      <note>
        <rest />
        <duration>12</duration>
        <voice>5</voice>
        <type>quarter</type>
        <staff>2</staff>
        </note>
      <note>
        <rest />
        <duration>24</duration>
        <voice>5</voice>
        <type>half</type>
        <staff>2</staff>
        </note>
      </measure>
    </part></score-partwise>