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Original file line number Diff line number Diff line change
@@ -0,0 +1,78 @@
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE score-partwise PUBLIC "-//Recordare//DTD MusicXML 4.0 Partwise//EN" "http://www.musicxml.org/dtds/partwise.dtd">
<score-partwise version="4.0">
<movement-title>Music21 Fragment</movement-title>
<identification>
<creator type="composer">Music21</creator>
<encoding>
<encoding-date>2026-06-06</encoding-date>
<software>music21 v.9.9.1</software>
</encoding>
</identification>
<defaults>
<scaling>
<millimeters>7</millimeters>
<tenths>40</tenths>
</scaling>
</defaults>
<part-list>
<score-part id="P540a2de26e3fb1004a92384010c2fb8f">
<part-name>Cluster</part-name>
</score-part>
</part-list>
<!--=========================== Part 1 ===========================-->
<part id="P540a2de26e3fb1004a92384010c2fb8f">
<!--========================= Measure 1 ==========================-->
<measure implicit="no" number="1">
<attributes>
<divisions>10080</divisions>
<time>
<beats>4</beats>
<beat-type>4</beat-type>
</time>
<clef>
<sign>G</sign>
<line>2</line>
</clef>
</attributes>
<note>
<pitch>
<step>C</step>
<octave>4</octave>
</pitch>
<duration>20160</duration>
<type>half</type>
</note>
<note>
<chord />
<pitch>
<step>D</step>
<octave>4</octave>
</pitch>
<duration>20160</duration>
<type>half</type>
</note>
<note>
<chord />
<pitch>
<step>E</step>
<octave>4</octave>
</pitch>
<duration>20160</duration>
<type>half</type>
</note>
<note>
<chord />
<pitch>
<step>F</step>
<octave>4</octave>
</pitch>
<duration>20160</duration>
<type>half</type>
</note>
<barline location="right">
<bar-style>light-heavy</bar-style>
</barline>
</measure>
</part>
</score-partwise>
Original file line number Diff line number Diff line change
@@ -0,0 +1,69 @@
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE score-partwise PUBLIC "-//Recordare//DTD MusicXML 4.0 Partwise//EN" "http://www.musicxml.org/dtds/partwise.dtd">
<score-partwise version="4.0">
<movement-title>Music21 Fragment</movement-title>
<identification>
<creator type="composer">Music21</creator>
<encoding>
<encoding-date>2026-06-06</encoding-date>
<software>music21 v.9.9.1</software>
</encoding>
</identification>
<defaults>
<scaling>
<millimeters>7</millimeters>
<tenths>40</tenths>
</scaling>
</defaults>
<part-list>
<score-part id="P6f036a0603bd334ccb379f99c351187f">
<part-name>High cluster</part-name>
</score-part>
</part-list>
<!--=========================== Part 1 ===========================-->
<part id="P6f036a0603bd334ccb379f99c351187f">
<!--========================= Measure 1 ==========================-->
<measure implicit="no" number="1">
<attributes>
<divisions>10080</divisions>
<time>
<beats>4</beats>
<beat-type>4</beat-type>
</time>
<clef>
<sign>G</sign>
<line>2</line>
</clef>
</attributes>
<note>
<pitch>
<step>C</step>
<octave>6</octave>
</pitch>
<duration>20160</duration>
<type>half</type>
</note>
<note>
<chord />
<pitch>
<step>E</step>
<octave>6</octave>
</pitch>
<duration>20160</duration>
<type>half</type>
</note>
<note>
<chord />
<pitch>
<step>G</step>
<octave>6</octave>
</pitch>
<duration>20160</duration>
<type>half</type>
</note>
<barline location="right">
<bar-style>light-heavy</bar-style>
</barline>
</measure>
</part>
</score-partwise>
Original file line number Diff line number Diff line change
@@ -0,0 +1,69 @@
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE score-partwise PUBLIC "-//Recordare//DTD MusicXML 4.0 Partwise//EN" "http://www.musicxml.org/dtds/partwise.dtd">
<score-partwise version="4.0">
<movement-title>Music21 Fragment</movement-title>
<identification>
<creator type="composer">Music21</creator>
<encoding>
<encoding-date>2026-06-06</encoding-date>
<software>music21 v.9.9.1</software>
</encoding>
</identification>
<defaults>
<scaling>
<millimeters>7</millimeters>
<tenths>40</tenths>
</scaling>
</defaults>
<part-list>
<score-part id="P81c82998a4bf07d448f7c2403d8d936c">
<part-name>Low cluster</part-name>
</score-part>
</part-list>
<!--=========================== Part 1 ===========================-->
<part id="P81c82998a4bf07d448f7c2403d8d936c">
<!--========================= Measure 1 ==========================-->
<measure implicit="no" number="1">
<attributes>
<divisions>10080</divisions>
<time>
<beats>4</beats>
<beat-type>4</beat-type>
</time>
<clef>
<sign>F</sign>
<line>4</line>
</clef>
</attributes>
<note>
<pitch>
<step>C</step>
<octave>2</octave>
</pitch>
<duration>20160</duration>
<type>half</type>
</note>
<note>
<chord />
<pitch>
<step>E</step>
<octave>2</octave>
</pitch>
<duration>20160</duration>
<type>half</type>
</note>
<note>
<chord />
<pitch>
<step>G</step>
<octave>2</octave>
</pitch>
<duration>20160</duration>
<type>half</type>
</note>
<barline location="right">
<bar-style>light-heavy</bar-style>
</barline>
</measure>
</part>
</score-partwise>
122 changes: 122 additions & 0 deletions corpus/fixtures/registral_regression/registral_contraction.musicxml
Original file line number Diff line number Diff line change
@@ -0,0 +1,122 @@
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE score-partwise PUBLIC "-//Recordare//DTD MusicXML 4.0 Partwise//EN" "http://www.musicxml.org/dtds/partwise.dtd">
<score-partwise version="4.0">
<movement-title>Music21 Fragment</movement-title>
<identification>
<creator type="composer">Music21</creator>
<encoding>
<encoding-date>2026-06-06</encoding-date>
<software>music21 v.9.9.1</software>
</encoding>
</identification>
<defaults>
<scaling>
<millimeters>7</millimeters>
<tenths>40</tenths>
</scaling>
</defaults>
<part-list>
<score-part id="P0ffe2b5922588236a97a9ea9cf7bba5a">
<part-name>Contraction</part-name>
</score-part>
</part-list>
<!--=========================== Part 1 ===========================-->
<part id="P0ffe2b5922588236a97a9ea9cf7bba5a">
<!--========================= Measure 1 ==========================-->
<measure implicit="no" number="1">
<attributes>
<divisions>10080</divisions>
<time>
<beats>4</beats>
<beat-type>4</beat-type>
</time>
<clef>
<sign>G</sign>
<line>2</line>
</clef>
</attributes>
<note>
<pitch>
<step>C</step>
<octave>3</octave>
</pitch>
<duration>10080</duration>
<type>quarter</type>
</note>
<note>
<chord />
<pitch>
<step>C</step>
<octave>5</octave>
</pitch>
<duration>10080</duration>
<type>quarter</type>
</note>
<note>
<pitch>
<step>G</step>
<octave>3</octave>
</pitch>
<duration>10080</duration>
<type>quarter</type>
</note>
<note>
<chord />
<pitch>
<step>G</step>
<octave>4</octave>
</pitch>
<duration>10080</duration>
<type>quarter</type>
</note>
<note>
<pitch>
<step>A</step>
<octave>3</octave>
</pitch>
<duration>10080</duration>
<type>quarter</type>
</note>
<note>
<chord />
<pitch>
<step>E</step>
<octave>4</octave>
</pitch>
<duration>10080</duration>
<type>quarter</type>
</note>
<note>
<pitch>
<step>B</step>
<octave>3</octave>
</pitch>
<duration>10080</duration>
<type>quarter</type>
</note>
<note>
<chord />
<pitch>
<step>D</step>
<octave>4</octave>
</pitch>
<duration>10080</duration>
<type>quarter</type>
</note>
</measure>
<!--========================= Measure 2 ==========================-->
<measure implicit="no" number="2">
<note>
<pitch>
<step>C</step>
<octave>4</octave>
</pitch>
<duration>10080</duration>
<type>quarter</type>
</note>
<barline location="right">
<bar-style>light-heavy</bar-style>
</barline>
</measure>
</part>
</score-partwise>
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