diff --git a/src/common/logging/vst3.cpp b/src/common/logging/vst3.cpp
index 1b6ea53d..69117b23 100644
--- a/src/common/logging/vst3.cpp
+++ b/src/common/logging/vst3.cpp
@@ -466,6 +466,31 @@ bool Vst3Logger::log_request(
     });
 }
 
+bool Vst3Logger::log_request(
+    bool is_host_vst,
+    const YaNoteExpressionPhysicalUIMapping::GetNotePhysicalUIMapping&
+        request) {
+    return log_request_base(is_host_vst, [&](auto& message) {
+        message << request.instance_id
+                << ": "
+                   "INoteExpressionPhysicalUIMapping::getNotePhysicalUIMapping("
+                   "busIndex = "
+                << request.bus_index << ", channel = " << request.channel
+                << ", list = ";
+        for (bool first = true; const auto& mapping : request.list.maps) {
+            if (!first) {
+                message << ", ";
+            }
+
+            // The host provides the physical UI elements, and the plugin should
+            // fill in a note expression ID for each of them.
+            message << mapping.physicalUITypeID << " => ?";
+            first = false;
+        }
+        message << ")";
+    });
+}
+
 bool Vst3Logger::log_request(bool is_host_vst,
                              const YaParameterFinder::FindParameter& request) {
     return log_request_base(is_host_vst, [&](auto& message) {
@@ -1396,6 +1421,26 @@ void Vst3Logger::log_response(
     });
 }
 
+void Vst3Logger::log_response(
+    bool is_host_vst,
+    const YaNoteExpressionPhysicalUIMapping::GetNotePhysicalUIMappingResponse&
+        response) {
+    log_response_base(is_host_vst, [&](auto& message) {
+        message << response.result.string();
+        if (response.result == Steinberg::kResultOk) {
+            message << ", [";
+            for (bool first = true; const auto& mapping : response.list.maps) {
+                if (!first) {
+                    message << ", ";
+                }
+                message << mapping.physicalUITypeID << " => "
+                        << mapping.noteExpressionTypeID;
+                first = false;
+            }
+        }
+    });
+}
+
 void Vst3Logger::log_response(
     bool is_host_vst,
     const YaParameterFinder::FindParameterResponse& response) {
diff --git a/src/common/logging/vst3.h b/src/common/logging/vst3.h
index c60d5f99..75808789 100644
--- a/src/common/logging/vst3.h
+++ b/src/common/logging/vst3.h
@@ -122,6 +122,9 @@ class Vst3Logger {
     bool log_request(
         bool is_host_vst,
         const YaNoteExpressionController::GetNoteExpressionValueByString&);
+    bool log_request(
+        bool is_host_vst,
+        const YaNoteExpressionPhysicalUIMapping::GetNotePhysicalUIMapping&);
     bool log_request(bool is_host_vst, const YaParameterFinder::FindParameter&);
     bool log_request(bool is_host_vst,
                      const YaPlugView::IsPlatformTypeSupported&);
@@ -252,6 +255,9 @@ class Vst3Logger {
     void log_response(bool is_host_vst,
                       const YaNoteExpressionController::
                           GetNoteExpressionValueByStringResponse&);
+    void log_response(bool is_host_vst,
+                      const YaNoteExpressionPhysicalUIMapping::
+                          GetNotePhysicalUIMappingResponse&);
     void log_response(bool is_host_vst,
                       const YaParameterFinder::FindParameterResponse&);
     void log_response(bool is_host_vst, const YaPlugView::GetSizeResponse&);
diff --git a/src/common/serialization/vst3/physical-ui-map-list.h b/src/common/serialization/vst3/physical-ui-map-list.h
index 57bb12ad..70616626 100644
--- a/src/common/serialization/vst3/physical-ui-map-list.h
+++ b/src/common/serialization/vst3/physical-ui-map-list.h
@@ -46,7 +46,6 @@ class YaPhysicalUIMapList {
         s.container(maps, 1 << 31);
     }
 
-   private:
     std::vector<Steinberg::Vst::PhysicalUIMap> maps;
 };