LMX:
measure key:fifths:-3 clef:G2 staff:1 clef:F4 staff:2 B3 voice:1 eighth stem:up staff:1 beam:begin slur:start chord F4 eighth F3 eighth beam:end slur:stop rest eighth D4 eighth A3 eighth natural beam:begin slur:start chord E4 eighth chord F4 eighth F3 eighth beam:end slur:stop rest eighth A3 eighth chord C4 eighth backup whole D3 voice:5 quarter stem:down staff:2 F3 quarter C3 quarter stem:up F3 quarter stem:down measure B3 voice:1 eighth stem:up staff:1 beam:begin slur:start chord D4 eighth F4 eighth beam:end slur:stop rest eighth B3 eighth chord D4 eighth chord B4 eighth rest eighth C4 eighth chord E4 eighth chord B4 eighth rest eighth D4 eighth chord F4 eighth chord B4 eighth backup whole B2 voice:5 quarter stem:up staff:2 F3 quarter stem:down B3 quarter A3 quarter


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="56" width="637.18">
      <print>
        <staff-layout number="1">
          <staff-distance>68.47</staff-distance>
          </staff-layout>
        <staff-layout number="2">
          <staff-distance>65.00</staff-distance>
          </staff-layout>
        </print>
      <attributes><divisions>2</divisions>
        <key>
          <fifths>-3</fifths>
          </key>
        <staves>2</staves>
        <clef number="1">
          <sign>G</sign>
          <line>2</line>
          </clef>
        <clef number="2">
          <sign>F</sign>
          <line>4</line>
          </clef>
        </attributes><note default-x="102.58" default-y="-163.47">
        <pitch>
          <step>B</step>
          <alter>-1</alter>
          <octave>3</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        <beam number="1">begin</beam>
        <notations>
          <slur type="start" placement="below" number="1" />
          </notations>
        </note>
      <note default-x="102.58" default-y="-143.47">
        <chord />
        <pitch>
          <step>F</step>
          <octave>4</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        </note>
      <note default-x="169.20" default-y="-178.47">
        <pitch>
          <step>F</step>
          <octave>3</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        <beam number="1">end</beam>
        <notations>
          <slur type="stop" number="1" />
          </notations>
        </note>
      <note>
        <rest />
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <staff>1</staff>
        </note>
      <note default-x="302.45" default-y="-153.47">
        <pitch>
          <step>D</step>
          <octave>4</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        </note>
      <note default-x="369.08" default-y="-168.47">
        <pitch>
          <step>A</step>
          <octave>3</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <accidental>natural</accidental>
        <stem>up</stem>
        <staff>1</staff>
        <beam number="1">begin</beam>
        <notations>
          <slur type="start" placement="below" number="1" />
          </notations>
        </note>
      <note default-x="369.08" default-y="-148.47">
        <chord />
        <pitch>
          <step>E</step>
          <alter>-1</alter>
          <octave>4</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        </note>
      <note default-x="380.95" default-y="-143.47">
        <chord />
        <pitch>
          <step>F</step>
          <octave>4</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        </note>
      <note default-x="435.70" default-y="-178.47">
        <pitch>
          <step>F</step>
          <octave>3</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        <beam number="1">end</beam>
        <notations>
          <slur type="stop" number="1" />
          </notations>
        </note>
      <note>
        <rest />
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <staff>1</staff>
        </note>
      <note default-x="568.96" default-y="-168.47">
        <pitch>
          <step>A</step>
          <octave>3</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        </note>
      <note default-x="568.96" default-y="-158.47">
        <chord />
        <pitch>
          <step>C</step>
          <octave>4</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        </note>
      <backup>
        <duration>8</duration>
        </backup>
      <note default-x="102.58" default-y="-233.47">
        <pitch>
          <step>D</step>
          <octave>3</octave>
          </pitch>
        <duration>2</duration>
        <voice>5</voice>
        <type>quarter</type>
        <stem>down</stem>
        <staff>2</staff>
        </note>
      <note default-x="235.83" default-y="-223.47">
        <pitch>
          <step>F</step>
          <octave>3</octave>
          </pitch>
        <duration>2</duration>
        <voice>5</voice>
        <type>quarter</type>
        <stem>down</stem>
        <staff>2</staff>
        </note>
      <note default-x="369.08" default-y="-238.47">
        <pitch>
          <step>C</step>
          <octave>3</octave>
          </pitch>
        <duration>2</duration>
        <voice>5</voice>
        <type>quarter</type>
        <stem>up</stem>
        <staff>2</staff>
        </note>
      <note default-x="502.33" default-y="-223.47">
        <pitch>
          <step>F</step>
          <octave>3</octave>
          </pitch>
        <duration>2</duration>
        <voice>5</voice>
        <type>quarter</type>
        <stem>down</stem>
        <staff>2</staff>
        </note>
      </measure>
    <measure number="57" width="529.85">
      <note default-x="32.00" default-y="-163.47">
        <pitch>
          <step>B</step>
          <alter>-1</alter>
          <octave>3</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        <beam number="1">begin</beam>
        <notations>
          <slur type="start" placement="below" number="1" />
          </notations>
        </note>
      <note default-x="32.00" default-y="-153.47">
        <chord />
        <pitch>
          <step>D</step>
          <octave>4</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        </note>
      <note default-x="94.03" default-y="-143.47">
        <pitch>
          <step>F</step>
          <octave>4</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        <beam number="1">end</beam>
        <notations>
          <slur type="stop" number="1" />
          </notations>
        </note>
      <note>
        <rest />
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <staff>1</staff>
        </note>
      <note default-x="218.09" default-y="-163.47">
        <pitch>
          <step>B</step>
          <alter>-1</alter>
          <octave>3</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        </note>
      <note default-x="218.09" default-y="-153.47">
        <chord />
        <pitch>
          <step>D</step>
          <octave>4</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        </note>
      <note default-x="218.09" default-y="-128.47">
        <chord />
        <pitch>
          <step>B</step>
          <alter>-1</alter>
          <octave>4</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        </note>
      <note>
        <rest />
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <staff>1</staff>
        </note>
      <note default-x="342.16" default-y="-158.47">
        <pitch>
          <step>C</step>
          <octave>4</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        </note>
      <note default-x="342.16" default-y="-148.47">
        <chord />
        <pitch>
          <step>E</step>
          <alter>-1</alter>
          <octave>4</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        </note>
      <note default-x="342.16" default-y="-128.47">
        <chord />
        <pitch>
          <step>B</step>
          <alter>-1</alter>
          <octave>4</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        </note>
      <note>
        <rest />
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <staff>1</staff>
        </note>
      <note default-x="466.22" default-y="-153.47">
        <pitch>
          <step>D</step>
          <octave>4</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        </note>
      <note default-x="466.22" default-y="-143.47">
        <chord />
        <pitch>
          <step>F</step>
          <octave>4</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        </note>
      <note default-x="466.22" default-y="-128.47">
        <chord />
        <pitch>
          <step>B</step>
          <alter>-1</alter>
          <octave>4</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>up</stem>
        <staff>1</staff>
        </note>
      <backup>
        <duration>8</duration>
        </backup>
      <note default-x="32.00" default-y="-243.47">
        <pitch>
          <step>B</step>
          <alter>-1</alter>
          <octave>2</octave>
          </pitch>
        <duration>2</duration>
        <voice>5</voice>
        <type>quarter</type>
        <stem>up</stem>
        <staff>2</staff>
        </note>
      <note default-x="156.06" default-y="-223.47">
        <pitch>
          <step>F</step>
          <octave>3</octave>
          </pitch>
        <duration>2</duration>
        <voice>5</voice>
        <type>quarter</type>
        <stem>down</stem>
        <staff>2</staff>
        </note>
      <note default-x="280.12" default-y="-208.47">
        <pitch>
          <step>B</step>
          <alter>-1</alter>
          <octave>3</octave>
          </pitch>
        <duration>2</duration>
        <voice>5</voice>
        <type>quarter</type>
        <stem>down</stem>
        <staff>2</staff>
        </note>
      <note default-x="404.19" default-y="-213.47">
        <pitch>
          <step>A</step>
          <alter>-1</alter>
          <octave>3</octave>
          </pitch>
        <duration>2</duration>
        <voice>5</voice>
        <type>quarter</type>
        <stem>down</stem>
        <staff>2</staff>
        </note>
      </measure>
    </part></score-partwise>