LMX:
measure key:fifths:2 clef:G2 staff:1 clef:F4 staff:2 B5 voice:1 eighth stem:down staff:1 beam:begin staccato B5 16th beam:begin slur:start A5 16th beam:end beam:end B5 eighth beam:begin slur:stop B5 16th beam:begin slur:start F5 16th beam:end beam:end A5 16th beam:begin beam:begin E5 16th C5 16th E5 16th beam:end beam:end A5 16th beam:begin beam:begin E5 16th C5 16th E5 16th beam:end beam:end slur:stop backup whole B3 voice:5 whole staff:2 chord F4 whole measure B5 voice:1 eighth stem:down staff:1 beam:begin staccato B5 16th beam:begin slur:start A5 16th beam:end beam:end B5 16th beam:begin beam:begin F5 16th D5 16th F5 16th beam:end beam:end E5 16th beam:begin beam:begin C5 16th A4 16th C5 16th beam:end beam:end B4 eighth beam:begin slur:stop staccato B4 eighth beam:end staccato backup whole B3 voice:5 whole staff:2 chord F4 whole


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="49" width="581.49">
      <print>
        <staff-layout number="1">
          <staff-distance>105.25</staff-distance>
          </staff-layout>
        <staff-layout number="2">
          <staff-distance>65.00</staff-distance>
          </staff-layout>
        </print>
      <attributes><divisions>4</divisions>
        <key>
          <fifths>2</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="94.62" default-y="-130.25">
        <pitch>
          <step>B</step>
          <octave>5</octave>
          </pitch>
        <duration>2</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">begin</beam>
        <notations>
          <articulations>
            <staccato />
            </articulations>
          </notations>
        </note>
      <note default-x="145.68" default-y="-130.25">
        <pitch>
          <step>B</step>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">continue</beam>
        <beam number="2">begin</beam>
        <notations>
          <slur type="start" placement="above" number="1" />
          </notations>
        </note>
      <note default-x="177.59" default-y="-135.25">
        <pitch>
          <step>A</step>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">end</beam>
        <beam number="2">end</beam>
        </note>
      <note default-x="209.50" default-y="-130.25">
        <pitch>
          <step>B</step>
          <octave>5</octave>
          </pitch>
        <duration>2</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">begin</beam>
        <notations>
          <slur type="stop" number="1" />
          </notations>
        </note>
      <note default-x="260.56" default-y="-130.25">
        <pitch>
          <step>B</step>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">continue</beam>
        <beam number="2">begin</beam>
        <notations>
          <slur type="start" placement="above" number="1" />
          </notations>
        </note>
      <note default-x="292.48" default-y="-145.25">
        <pitch>
          <step>F</step>
          <alter>1</alter>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">end</beam>
        <beam number="2">end</beam>
        </note>
      <note default-x="324.39" default-y="-135.25">
        <pitch>
          <step>A</step>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">begin</beam>
        <beam number="2">begin</beam>
        </note>
      <note default-x="356.30" default-y="-150.25">
        <pitch>
          <step>E</step>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">continue</beam>
        <beam number="2">continue</beam>
        </note>
      <note default-x="388.22" default-y="-160.25">
        <pitch>
          <step>C</step>
          <alter>1</alter>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">continue</beam>
        <beam number="2">continue</beam>
        </note>
      <note default-x="420.13" default-y="-150.25">
        <pitch>
          <step>E</step>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">end</beam>
        <beam number="2">end</beam>
        </note>
      <note default-x="452.04" default-y="-135.25">
        <pitch>
          <step>A</step>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">begin</beam>
        <beam number="2">begin</beam>
        </note>
      <note default-x="483.95" default-y="-150.25">
        <pitch>
          <step>E</step>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">continue</beam>
        <beam number="2">continue</beam>
        </note>
      <note default-x="515.87" default-y="-160.25">
        <pitch>
          <step>C</step>
          <alter>1</alter>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">continue</beam>
        <beam number="2">continue</beam>
        </note>
      <note default-x="547.78" default-y="-150.25">
        <pitch>
          <step>E</step>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">end</beam>
        <beam number="2">end</beam>
        <notations>
          <slur type="stop" number="1" />
          </notations>
        </note>
      <backup>
        <duration>16</duration>
        </backup>
      <note default-x="93.66" default-y="-245.25">
        <pitch>
          <step>B</step>
          <octave>3</octave>
          </pitch>
        <duration>16</duration>
        <voice>5</voice>
        <type>whole</type>
        <staff>2</staff>
        </note>
      <note default-x="93.66" default-y="-225.25">
        <chord />
        <pitch>
          <step>F</step>
          <alter>1</alter>
          <octave>4</octave>
          </pitch>
        <duration>16</duration>
        <voice>5</voice>
        <type>whole</type>
        <staff>2</staff>
        </note>
      </measure>
    <measure number="50" width="563.50">
      <note default-x="17.46" default-y="-130.25">
        <pitch>
          <step>B</step>
          <octave>5</octave>
          </pitch>
        <duration>2</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">begin</beam>
        <notations>
          <articulations>
            <staccato />
            </articulations>
          </notations>
        </note>
      <note default-x="76.30" default-y="-130.25">
        <pitch>
          <step>B</step>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">continue</beam>
        <beam number="2">begin</beam>
        <notations>
          <slur type="start" placement="above" number="1" />
          </notations>
        </note>
      <note default-x="113.07" default-y="-135.25">
        <pitch>
          <step>A</step>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">end</beam>
        <beam number="2">end</beam>
        </note>
      <note default-x="149.84" default-y="-130.25">
        <pitch>
          <step>B</step>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">begin</beam>
        <beam number="2">begin</beam>
        </note>
      <note default-x="186.62" default-y="-145.25">
        <pitch>
          <step>F</step>
          <alter>1</alter>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">continue</beam>
        <beam number="2">continue</beam>
        </note>
      <note default-x="223.39" default-y="-155.25">
        <pitch>
          <step>D</step>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">continue</beam>
        <beam number="2">continue</beam>
        </note>
      <note default-x="260.16" default-y="-145.25">
        <pitch>
          <step>F</step>
          <alter>1</alter>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">end</beam>
        <beam number="2">end</beam>
        </note>
      <note default-x="296.94" default-y="-150.25">
        <pitch>
          <step>E</step>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">begin</beam>
        <beam number="2">begin</beam>
        </note>
      <note default-x="333.71" default-y="-160.25">
        <pitch>
          <step>C</step>
          <alter>1</alter>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">continue</beam>
        <beam number="2">continue</beam>
        </note>
      <note default-x="370.48" default-y="-170.25">
        <pitch>
          <step>A</step>
          <octave>4</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">continue</beam>
        <beam number="2">continue</beam>
        </note>
      <note default-x="407.26" default-y="-160.25">
        <pitch>
          <step>C</step>
          <alter>1</alter>
          <octave>5</octave>
          </pitch>
        <duration>1</duration>
        <voice>1</voice>
        <type>16th</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">end</beam>
        <beam number="2">end</beam>
        </note>
      <note default-x="444.03" default-y="-165.25">
        <pitch>
          <step>B</step>
          <octave>4</octave>
          </pitch>
        <duration>2</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">begin</beam>
        <notations>
          <slur type="stop" number="1" />
          <articulations>
            <staccato />
            </articulations>
          </notations>
        </note>
      <note default-x="502.87" default-y="-165.25">
        <pitch>
          <step>B</step>
          <octave>4</octave>
          </pitch>
        <duration>2</duration>
        <voice>1</voice>
        <type>eighth</type>
        <stem>down</stem>
        <staff>1</staff>
        <beam number="1">end</beam>
        <notations>
          <articulations>
            <staccato />
            </articulations>
          </notations>
        </note>
      <direction placement="below">
        <direction-type>
          <dashes type="stop" number="1" />
          </direction-type>
        <staff>1</staff>
        </direction>
      <backup>
        <duration>16</duration>
        </backup>
      <note default-x="16.50" default-y="-245.25">
        <pitch>
          <step>B</step>
          <octave>3</octave>
          </pitch>
        <duration>16</duration>
        <voice>5</voice>
        <type>whole</type>
        <staff>2</staff>
        </note>
      <note default-x="16.50" default-y="-225.25">
        <chord />
        <pitch>
          <step>F</step>
          <alter>1</alter>
          <octave>4</octave>
          </pitch>
        <duration>16</duration>
        <voice>5</voice>
        <type>whole</type>
        <staff>2</staff>
        </note>
      </measure>
    </part></score-partwise>