diff --git a/MEI_4.0/Music/Complete_examples/Echigo-Jishi.mei b/MEI_4.0/Music/Complete_examples/Echigo-Jishi.mei
index 26c74add..d0abbeff 100644
--- a/MEI_4.0/Music/Complete_examples/Echigo-Jishi.mei
+++ b/MEI_4.0/Music/Complete_examples/Echigo-Jishi.mei
@@ -206,7 +206,7 @@
       </work>
     </workList>
     <revisionDesc>
-      <change>
+      <change n="1">
         <respStmt>
           <persName>Perry Roland</persName>
         </respStmt>
@@ -236,7 +236,7 @@
         </changeDesc>
         <date isodate="2015-10-15"/>
       </change>
-      <change resp="#mei30To40">
+      <change n="5" resp="#mei30To40">
         <changeDesc>
           <p>Converted to MEI version 4.0.0 using mei30To40.xsl, version 1.0 beta</p>
         </changeDesc>
diff --git a/MEI_4.0/Music/Complete_examples/Parker-Gillespie_ShawNuff.mei b/MEI_4.0/Music/Complete_examples/Parker-Gillespie_ShawNuff.mei
index 335b0d61..b69714cf 100644
--- a/MEI_4.0/Music/Complete_examples/Parker-Gillespie_ShawNuff.mei
+++ b/MEI_4.0/Music/Complete_examples/Parker-Gillespie_ShawNuff.mei
@@ -170,7 +170,7 @@
       </work>
     </workList>
     <revisionDesc>
-      <change>
+      <change n="1">
         <respStmt>
           <persName>Maja Hartwig</persName>
         </respStmt>
@@ -191,7 +191,7 @@
         </changeDesc>
         <date isodate="2015-10-15"/>
       </change>
-      <change resp="#mei30To40">
+      <change n="4" resp="#mei30To40">
         <changeDesc>
           <p>Converted to MEI version 4.0.0 using mei30To40.xsl, version 1.0 beta</p>
         </changeDesc>
diff --git a/MEI_4.0/Music/Music_structure/part_element.mei b/MEI_4.0/Music/Music_structure/part_element.mei
index 7c7c713c..7ada72ea 100644
--- a/MEI_4.0/Music/Music_structure/part_element.mei
+++ b/MEI_4.0/Music/Music_structure/part_element.mei
@@ -168,7 +168,7 @@
       </work>
     </workList>
     <revisionDesc>
-      <change>
+      <change n="1">
         <respStmt>
           <persName>Perry Roland</persName>
         </respStmt>
@@ -192,7 +192,7 @@
         </changeDesc>
         <date isodate="2015-10-16"/>
       </change>
-      <change resp="#mei30To40">
+      <change n="4" resp="#mei30To40">
         <changeDesc>
           <p>Converted to MEI version 4.0.0 using mei30To40.xsl, version 1.0 beta</p>
         </changeDesc>
diff --git a/MEI_4.0/Musical-features/snippets/short_examples/ambig.mei b/MEI_4.0/Musical-features/snippets/short_examples/ambig.mei
index 4ce4043b..5c8bcf8e 100644
--- a/MEI_4.0/Musical-features/snippets/short_examples/ambig.mei
+++ b/MEI_4.0/Musical-features/snippets/short_examples/ambig.mei
@@ -68,7 +68,7 @@
       </appInfo>
     </encodingDesc>
     <revisionDesc>
-      <change>
+      <change n="1">
         <respStmt>
           <persName xml:id="KR"> Kristina Richts </persName>
         </respStmt>
@@ -83,7 +83,7 @@
         </changeDesc>
         <date isodate="2015-11-18"/>
       </change>
-      <change resp="#mei30To40">
+      <change n="3" resp="#mei30To40">
         <changeDesc>
           <p>Converted to MEI version 4.0.0 using mei30To40.xsl, version 1.0 beta</p>
         </changeDesc>