fix(Slurs): Reduce height of long, steep slurs by flattening them (#971)

fixes #971

can be controlled by new EngravingRules.

src/MusicalScore/Graphical/EngravingRules.ts

@@ -182,6 +182,11 @@ export class EngravingRules {
     public SlurSlopeMaxAngle: number;
     public SlurTangentMinAngle: number;
     public SlurTangentMaxAngle: number;
+    public SlurHeightFactor: number;
+    public SlurHeightFlattenLongSlursFactorByWidth: number;
+    public SlurHeightFlattenLongSlursFactorByAngle: number;
+    public SlurHeightFlattenLongSlursCutoffAngle: number;
+    public SlurHeightFlattenLongSlursCutoffWidth: number;
     public SlursStartingAtSameStaffEntryYOffset: number;
     public InstantaneousTempoTextHeight: number;
     public ContinuousDynamicTextHeight: number;
@@ -468,6 +473,11 @@ export class EngravingRules {
         this.SlurSlopeMaxAngle = 15.0;
         this.SlurTangentMinAngle = 30.0;
         this.SlurTangentMaxAngle = 80.0;
+        this.SlurHeightFactor = 1; // 1 = 100% (standard height). 2 = 100% flattening of all slurs.
+        this.SlurHeightFlattenLongSlursFactorByWidth = 0.9; // additional flattening for long slurs the longer they are.
+        this.SlurHeightFlattenLongSlursFactorByAngle = 0.1; // this has a very strong effect on the curve, even with small increases.
+        this.SlurHeightFlattenLongSlursCutoffAngle = 55;
+        this.SlurHeightFlattenLongSlursCutoffWidth = 15;
         this.SlursStartingAtSameStaffEntryYOffset = 0.8;
 
         // Repetitions

src/MusicalScore/Graphical/GraphicalSlur.ts

@@ -233,6 +233,8 @@ export class GraphicalSlur extends GraphicalCurve {
             endControlPoint = transposeMatrix.vectorMultiplication(endControlPoint);
             endControlPoint.x += startX;
             endControlPoint.y = -endControlPoint.y + startY;
+            // middleControlPoint.x = (startControlPoint.x + endControlPoint.x) / 2;
+            // middleControlPoint.y = (startControlPoint.y + endControlPoint.y) / 2 + 1.0;
 
             /* for DEBUG only */
             // this.intersection = transposeMatrix.vectorMultiplication(intersectionPoint);
@@ -868,14 +870,38 @@ export class GraphicalSlur extends GraphicalCurve {
      * @param points
      */
     private calculateControlPoints(endX: number, startAngle: number, endAngle: number,
-                                   points: PointF2D[], heightWidthRatio: number): { startControlPoint: PointF2D, endControlPoint: PointF2D } {
+                                   points: PointF2D[], heightWidthRatio: number
+    ): { startControlPoint: PointF2D, endControlPoint: PointF2D } {
+        let heightFactor: number = this.rules.SlurHeightFactor;
+        let widthFlattenFactor: number = 1;
+        const cutoffAngle: number = this.rules.SlurHeightFlattenLongSlursCutoffAngle;
+        const cutoffWidth: number = this.rules.SlurHeightFlattenLongSlursCutoffWidth;
+        if (startAngle > cutoffAngle && endX > cutoffWidth) { // steep and wide slurs
+            // console.log("steep angle: " + startAngle);
+            widthFlattenFactor += endX / 70 * this.rules.SlurHeightFlattenLongSlursFactorByWidth; // double flattening for width = 70, factorByWidth = 1
+            widthFlattenFactor *= 1 + (startAngle / 30 * this.rules.SlurHeightFlattenLongSlursFactorByAngle); // flatten more for higher angles.
+            // TODO use sin or cos instead of startAngle directly
+            heightFactor /= widthFlattenFactor; // flatten long slurs more
+        }
+        // TODO also offer a widthFlattenFactor for smaller slurs?
+
+        // debug:
+        // const measureNumber: number = this.staffEntries[0].parentMeasure.MeasureNumber; // debug
+        // if (measureNumber === 10) {
+        //     console.log("endX: " + endX);
+        //     console.log("widthFlattenFactor: " + widthFlattenFactor);
+        //     console.log("heightFactor: " + heightFactor);
+        //     console.log("startAngle: " + startAngle);
+        //     console.log("heightWidthRatio: " + heightWidthRatio);
+        // }
+
         // calculate HeightWidthRatio between the MaxYpoint (from the points between StartPoint and EndPoint)
         // and the X-distance from StartPoint to EndPoint
         // use this HeightWidthRatio to get a "normalized" Factor (based on tested parameters)
         // this Factor denotes the Length of the TangentLine of the Curve (a proportion of the X-distance from StartPoint to EndPoint)
         // finally from this Length and the calculated Angles we get the coordinates of the Control Points
-        const factorStart: number = Math.min(0.5, Math.max(0.1, 1.7 * (startAngle / 80) * Math.pow(Math.max(heightWidthRatio, 0.05), 0.4)));
-        const factorEnd: number = Math.min(0.5, Math.max(0.1, 1.7 * (-endAngle / 80) * Math.pow(Math.max(heightWidthRatio, 0.05), 0.4)));
+        const factorStart: number = Math.min(0.5, Math.max(0.1, 1.7 * startAngle / 80 * heightFactor * Math.pow(Math.max(heightWidthRatio, 0.05), 0.4)));
+        const factorEnd: number = Math.min(0.5, Math.max(0.1, 1.7 * (-endAngle) / 80 * heightFactor * Math.pow(Math.max(heightWidthRatio, 0.05), 0.4)));
 
         const startControlPoint: PointF2D = new PointF2D();
         startControlPoint.x = endX * factorStart * Math.cos(startAngle * GraphicalSlur.degreesToRadiansFactor);

test/data/test_long_steep_slur_arc_flattening_chopin.musicxml

@@ -0,0 +1,674 @@
+<?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">
+ <work>
+  <work-title>control track</work-title>
+ </work>
+ <identification>
+  <encoding>
+   <encoding-date>2021-02-10</encoding-date>
+   <encoder>Jack Keough</encoder>
+   <software>Sibelius 19.5.0</software>
+   <software>Direct export, not from Dolet</software>
+   <encoding-description>Sibelius / MusicXML 3.0</encoding-description>
+   <supports element="print" type="yes" value="yes" attribute="new-system" />
+   <supports element="print" type="yes" value="yes" attribute="new-page" />
+   <supports element="accidental" type="yes" />
+   <supports element="beam" type="yes" />
+   <supports element="stem" type="yes" />
+  </encoding>
+ </identification>
+ <defaults>
+  <scaling>
+   <millimeters>215.9</millimeters>
+   <tenths>1233</tenths>
+  </scaling>
+  <page-layout>
+   <page-height>1596</page-height>
+   <page-width>1233</page-width>
+   <page-margins type="both">
+    <left-margin>85</left-margin>
+    <right-margin>85</right-margin>
+    <top-margin>85</top-margin>
+    <bottom-margin>85</bottom-margin>
+   </page-margins>
+  </page-layout>
+  <system-layout>
+   <system-margins>
+    <left-margin>63</left-margin>
+    <right-margin>0</right-margin>
+   </system-margins>
+   <system-distance>92</system-distance>
+  </system-layout>
+  <appearance>
+   <line-width type="stem">0.9375</line-width>
+   <line-width type="beam">5</line-width>
+   <line-width type="staff">0.9375</line-width>
+   <line-width type="light barline">1.5625</line-width>
+   <line-width type="heavy barline">5</line-width>
+   <line-width type="leger">1.5625</line-width>
+   <line-width type="ending">1.5625</line-width>
+   <line-width type="wedge">1.25</line-width>
+   <line-width type="enclosure">0.9375</line-width>
+   <line-width type="tuplet bracket">1.25</line-width>
+   <line-width type="bracket">5</line-width>
+   <line-width type="dashes">1.5625</line-width>
+   <line-width type="extend">0.9375</line-width>
+   <line-width type="octave shift">1.5625</line-width>
+   <line-width type="pedal">1.5625</line-width>
+   <line-width type="slur middle">1.5625</line-width>
+   <line-width type="slur tip">0.625</line-width>
+   <line-width type="tie middle">1.5625</line-width>
+   <line-width type="tie tip">0.625</line-width>
+   <note-size type="cue">75</note-size>
+   <note-size type="grace">60</note-size>
+  </appearance>
+  <music-font font-family="Opus Std" font-size="19.8425" />
+  <lyric-font font-family="Times New Roman" font-size="11.4715" />
+  <lyric-language xml:lang="en" />
+ </defaults>
+ <part-list>
+  <part-group type="start" number="1">
+   <group-symbol>brace</group-symbol>
+  </part-group>
+  <score-part id="P1">
+   <part-name>Piano</part-name>
+   <part-name-display>
+    <display-text>Piano</display-text>
+   </part-name-display>
+   <part-abbreviation>Pno.</part-abbreviation>
+   <part-abbreviation-display>
+    <display-text>Pno.</display-text>
+   </part-abbreviation-display>
+   <score-instrument id="P1-I1">
+    <instrument-name>Piano (2)</instrument-name>
+    <instrument-sound>keyboard.piano.grand</instrument-sound>
+    <solo />
+    <virtual-instrument>
+     <virtual-library>General MIDI</virtual-library>
+     <virtual-name>Acoustic Piano</virtual-name>
+    </virtual-instrument>
+   </score-instrument>
+  </score-part>
+  <part-group type="stop" number="1" />
+ </part-list>
+ <part id="P1">
+  <!--============== Part: P1, Measure: 1 ==============-->
+  <measure number="1" width="402">
+   <print new-page="yes">
+    <system-layout>
+     <system-margins>
+      <left-margin>76</left-margin>
+      <right-margin>0</right-margin>
+     </system-margins>
+     <top-system-distance>181</top-system-distance>
+    </system-layout>
+   </print>
+   <attributes>
+    <divisions>256</divisions>
+    <key color="#000000">
+     <fifths>-4</fifths>
+     <mode>minor</mode>
+    </key>
+    <time color="#000000">
+     <beats>2</beats>
+     <beat-type>2</beat-type>
+    </time>
+    <staves>1</staves>
+    <clef number="1" color="#000000">
+     <sign>G</sign>
+     <line>2</line>
+    </clef>
+    <staff-details number="1" print-object="yes" />
+   </attributes>
+   <note default-x="125">
+    <rest />
+    <duration>170</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <staff>1</staff>
+    <notations>
+     <tuplet type="start" bracket="no" number="1" default-y="17" placement="above" />
+    </notations>
+   </note>
+   <direction>
+    <direction-type>
+     <dynamics default-x="165" default-y="-72" color="#000000" font-family="Opus Text Std" font-style="normal" font-size="11.9365" font-weight="normal">
+      <p />
+     </dynamics>
+    </direction-type>
+    <voice>1</voice>
+    <staff>1</staff>
+   </direction>
+   <note color="#000000" default-x="171" default-y="-15">
+    <pitch>
+     <step>C</step>
+     <alter>-1</alter>
+     <octave>4</octave>
+    </pitch>
+    <duration>171</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <accidental>flat</accidental>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+    <notations>
+     <slur color="#000000" type="start" orientation="over" />
+    </notations>
+   </note>
+   <note color="#000000" default-x="217" default-y="-15">
+    <pitch>
+     <step>C</step>
+     <octave>4</octave>
+    </pitch>
+    <duration>171</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <accidental>natural</accidental>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+   </note>
+   <note color="#000000" default-x="263" default-y="-10">
+    <pitch>
+     <step>D</step>
+     <alter>-1</alter>
+     <octave>4</octave>
+    </pitch>
+    <duration>170</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+   </note>
+   <note color="#000000" default-x="310" default-y="-20">
+    <pitch>
+     <step>B</step>
+     <alter>-1</alter>
+     <octave>3</octave>
+    </pitch>
+    <duration>171</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+   </note>
+   <note color="#000000" default-x="355">
+    <pitch>
+     <step>F</step>
+     <octave>4</octave>
+    </pitch>
+    <duration>171</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+    <notations>
+     <tuplet type="stop" bracket="no" number="1" default-y="17" placement="above" />
+    </notations>
+   </note>
+  </measure>
+  <!--============== Part: P1, Measure: 2 ==============-->
+  <measure number="2" width="292">
+   <note color="#000000" default-x="15" default-y="-5">
+    <pitch>
+     <step>E</step>
+     <octave>4</octave>
+    </pitch>
+    <duration>170</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <accidental>natural</accidental>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+    <notations>
+     <tuplet type="start" bracket="no" number="1" default-y="12" placement="above" />
+    </notations>
+   </note>
+   <note color="#000000" default-x="61" default-y="-15">
+    <pitch>
+     <step>C</step>
+     <alter>-1</alter>
+     <octave>4</octave>
+    </pitch>
+    <duration>171</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <accidental>flat</accidental>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+   </note>
+   <note color="#000000" default-x="107" default-y="-15">
+    <pitch>
+     <step>C</step>
+     <octave>4</octave>
+    </pitch>
+    <duration>171</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <accidental>natural</accidental>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+   </note>
+   <note color="#000000" default-x="153" default-y="-10">
+    <pitch>
+     <step>D</step>
+     <alter>-1</alter>
+     <octave>4</octave>
+    </pitch>
+    <duration>170</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+   </note>
+   <note color="#000000" default-x="200" default-y="-20">
+    <pitch>
+     <step>B</step>
+     <alter>-1</alter>
+     <octave>3</octave>
+    </pitch>
+    <duration>171</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+   </note>
+   <note color="#000000" default-x="246">
+    <pitch>
+     <step>F</step>
+     <octave>4</octave>
+    </pitch>
+    <duration>171</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+    <notations>
+     <tuplet type="stop" bracket="no" number="1" default-y="12" placement="above" />
+    </notations>
+   </note>
+  </measure>
+  <!--============== Part: P1, Measure: 3 ==============-->
+  <measure number="3" width="292">
+   <note color="#000000" default-x="15" default-y="-5">
+    <pitch>
+     <step>E</step>
+     <octave>4</octave>
+    </pitch>
+    <duration>170</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <accidental>natural</accidental>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+    <notations>
+     <tuplet type="start" bracket="no" number="1" default-y="12" placement="above" />
+    </notations>
+   </note>
+   <note color="#000000" default-x="61" default-y="-15">
+    <pitch>
+     <step>C</step>
+     <alter>-1</alter>
+     <octave>4</octave>
+    </pitch>
+    <duration>171</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <accidental>flat</accidental>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+   </note>
+   <note color="#000000" default-x="107" default-y="-15">
+    <pitch>
+     <step>C</step>
+     <octave>4</octave>
+    </pitch>
+    <duration>171</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <accidental>natural</accidental>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+   </note>
+   <note color="#000000" default-x="153" default-y="-10">
+    <pitch>
+     <step>D</step>
+     <alter>-1</alter>
+     <octave>4</octave>
+    </pitch>
+    <duration>170</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+   </note>
+   <note color="#000000" default-x="199" default-y="-15">
+    <pitch>
+     <step>C</step>
+     <octave>4</octave>
+    </pitch>
+    <duration>171</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+   </note>
+   <note color="#000000" default-x="245" default-y="-10">
+    <pitch>
+     <step>D</step>
+     <octave>4</octave>
+    </pitch>
+    <duration>171</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <accidental>natural</accidental>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+    <notations>
+     <tuplet type="stop" bracket="no" number="1" default-y="12" placement="above" />
+    </notations>
+   </note>
+  </measure>
+  <!--============== Part: P1, Measure: 4 ==============-->
+  <measure number="4" width="595">
+   <print new-system="yes">
+    <system-layout>
+     <system-margins>
+      <left-margin>64</left-margin>
+      <right-margin>0</right-margin>
+     </system-margins>
+     <system-distance>119</system-distance>
+    </system-layout>
+   </print>
+   <attributes>
+    <staff-details number="1" print-object="yes" />
+   </attributes>
+   <direction>
+    <direction-type>
+     <wedge default-x="11" default-y="-65" color="#000000" type="crescendo" />
+    </direction-type>
+    <voice>1</voice>
+    <staff>1</staff>
+   </direction>
+   <note color="#000000" default-x="107">
+    <pitch>
+     <step>F</step>
+     <octave>4</octave>
+    </pitch>
+    <duration>170</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+    <notations>
+     <tuplet type="start" bracket="no" number="1" default-y="12" placement="above" />
+    </notations>
+   </note>
+   <note color="#000000" default-x="188" default-y="-5">
+    <pitch>
+     <step>E</step>
+     <octave>4</octave>
+    </pitch>
+    <duration>171</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <accidental>natural</accidental>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+   </note>
+   <note color="#000000" default-x="270">
+    <pitch>
+     <step>F</step>
+     <octave>4</octave>
+    </pitch>
+    <duration>171</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+   </note>
+   <note color="#000000" default-x="351" default-y="10">
+    <pitch>
+     <step>A</step>
+     <alter>-1</alter>
+     <octave>4</octave>
+    </pitch>
+    <duration>170</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+   </note>
+   <direction>
+    <direction-type>
+     <wedge default-x="-8" default-y="-65" color="#000000" type="stop" />
+    </direction-type>
+    <offset sound="no">-1</offset>
+    <voice>1</voice>
+    <staff>1</staff>
+   </direction>
+   <direction>
+    <direction-type>
+     <wedge default-x="11" default-y="-65" color="#000000" type="diminuendo" number="2" />
+    </direction-type>
+    <voice>1</voice>
+    <staff>1</staff>
+   </direction>
+   <note color="#000000" default-x="432" default-y="5">
+    <pitch>
+     <step>G</step>
+     <octave>4</octave>
+    </pitch>
+    <duration>171</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+   </note>
+   <direction>
+    <direction-type>
+     <wedge default-x="-8" default-y="-65" color="#000000" type="stop" number="2" />
+    </direction-type>
+    <offset sound="no">170</offset>
+    <voice>1</voice>
+    <staff>1</staff>
+   </direction>
+   <note color="#000000" default-x="513" default-y="10">
+    <pitch>
+     <step>A</step>
+     <alter>-1</alter>
+     <octave>4</octave>
+    </pitch>
+    <duration>171</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <time-modification>
+     <actual-notes>6</actual-notes>
+     <normal-notes>4</normal-notes>
+     <normal-type>quarter</normal-type>
+    </time-modification>
+    <stem>up</stem>
+    <staff>1</staff>
+    <notations>
+     <tuplet type="stop" bracket="no" number="1" default-y="12" placement="above" />
+    </notations>
+   </note>
+  </measure>
+  <!--============== Part: P1, Measure: 5 ==============-->
+  <measure number="5" width="404">
+   <note color="#000000" default-x="15">
+    <pitch>
+     <step>F</step>
+     <octave>4</octave>
+    </pitch>
+    <duration>256</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <stem>up</stem>
+    <staff>1</staff>
+    <notations>
+     <slur color="#000000" type="stop" orientation="over" />
+    </notations>
+   </note>
+   <note default-x="116">
+    <rest />
+    <duration>256</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>quarter</type>
+    <staff>1</staff>
+   </note>
+   <note default-x="217">
+    <rest />
+    <duration>512</duration>
+    <instrument id="P1-I1" />
+    <voice>1</voice>
+    <type>half</type>
+    <staff>1</staff>
+   </note>
+   <barline>
+    <bar-style>light-heavy</bar-style>
+   </barline>
+  </measure>
+ </part>
+</score-partwise>