diff --git a/src/converter/internal/compat/backendapi.cpp b/src/converter/internal/compat/backendapi.cpp
index a1c8dcab0db74..94148d92b0504 100644
--- a/src/converter/internal/compat/backendapi.cpp
+++ b/src/converter/internal/compat/backendapi.cpp
@@ -536,10 +536,10 @@ Ret BackendApi::doExportScoreParts(const IMasterNotationPtr masterNotation, QIOD
     ExcerptNotationList excerpts = allExcerpts(masterNotation);
 
     for (IExcerptNotationPtr excerpt : excerpts) {
-        mu::engraving::Score* part = excerpt->notation()->elements()->msScore();
-        std::map<String, String> partMetaTags = part->metaTags();
+        mu::engraving::Score* partScore = excerpt->notation()->elements()->msScore();
+        std::map<String, String> partMetaTags = partScore->metaTags();
 
-        QJsonValue partTitle(part->name());
+        QJsonValue partTitle(partScore->name());
         partsTitles << partTitle;
 
         QVariantMap meta;
@@ -547,14 +547,14 @@ Ret BackendApi::doExportScoreParts(const IMasterNotationPtr masterNotation, QIOD
             meta[key] = partMetaTags[key].toQString();
         }
 
-        meta["open"] = part->isOpen();
-        meta["id"] = QString::fromStdString(part->eid().toStdString());
+        meta["open"] = partScore->isOpen();
+        meta["id"] = QString::fromStdString(partScore->eid().toStdString());
 
         QJsonValue partMetaObj = QJsonObject::fromVariantMap(meta);
         partsMetaList << partMetaObj;
 
-        std::string fileName = io::escapeFileName(part->name().toStdString()).toStdString() + ".mscz";
-        QJsonValue partObj(QString::fromLatin1(scorePartJson(part, fileName).val));
+        std::string fileName = io::escapeFileName(partScore->name().toStdString()).toStdString() + ".mscz";
+        QJsonValue partObj(QString::fromLatin1(scorePartJson(partScore, fileName).val));
         partsObjList << partObj;
     }
 
diff --git a/src/engraving/dom/score.cpp b/src/engraving/dom/score.cpp
index eaf7bf389c17f..b2c734a858688 100644
--- a/src/engraving/dom/score.cpp
+++ b/src/engraving/dom/score.cpp
@@ -156,7 +156,7 @@ Score::Score(const modularity::ContextPtr& iocCtx)
     }
 
     Score::validScores.insert(this);
-    m_masterScore = 0;
+    m_masterScore = nullptr;
 
     m_engravingFont = engravingFonts()->fontByName("Leland");
 
@@ -180,6 +180,11 @@ Score::Score(MasterScore* parent, bool forcePartStyle /* = true */)
 {
     Score::validScores.insert(this);
     m_masterScore = parent;
+
+    if (m_masterScore) {
+        setEID(m_masterScore->getEID()->newEID(type()));
+    }
+
     if (DefaultStyle::defaultStyleForParts()) {
         m_style = *DefaultStyle::defaultStyleForParts();
     } else {
diff --git a/src/engraving/rw/read410/read410.cpp b/src/engraving/rw/read410/read410.cpp
index a40226e6b41c5..8ea3f4eac540c 100644
--- a/src/engraving/rw/read410/read410.cpp
+++ b/src/engraving/rw/read410/read410.cpp
@@ -123,7 +123,10 @@ bool Read410::readScore410(Score* score, XmlReader& e, ReadContext& ctx)
     while (e.readNextStartElement()) {
         ctx.setTrack(muse::nidx);
         const AsciiStringView tag(e.name());
-        if (tag == "Staff") {
+        if (tag == "eid") {
+            AsciiStringView s = e.readAsciiText();
+            score->setEID(EID::fromStdString(s));
+        } else if (tag == "Staff") {
             StaffRead::readStaff(score, e, ctx);
         } else if (tag == "Omr") {
             e.skipCurrentElement();
diff --git a/src/engraving/rw/write/writer.cpp b/src/engraving/rw/write/writer.cpp
index a55f801c68fcb..f1a1e3f79b4aa 100644
--- a/src/engraving/rw/write/writer.cpp
+++ b/src/engraving/rw/write/writer.cpp
@@ -114,6 +114,12 @@ void Writer::write(Score* score, XmlWriter& xml, WriteContext& ctx, bool selecti
 
     xml.startElement(score);
 
+    if (!MScore::testMode && !score->isPaletteScore()) {
+        if (score->eid().isValid()) {
+            xml.tag("eid", score->eid().toUint64());
+        }
+    }
+
     if (Excerpt* e = score->excerpt()) {
         if (!e->name().empty()) {
             xml.tag("name", e->name());