diff --git a/data/uking_functions.csv b/data/uking_functions.csv
index 75aaa698..a76e285c 100644
--- a/data/uking_functions.csv
+++ b/data/uking_functions.csv
@@ -86097,16 +86097,16 @@
 0x0000007101014450,sub_7101014450,24,
 0x0000007101014468,sub_7101014468,52,
 0x000000710101449c,registerBmscdefEntryFactory,392,
-0x0000007101014624,ResourceBmscdef::doCreate,1716,
-0x0000007101014cd8,sub_7101014CD8,324,
-0x0000007101014e1c,sub_7101014E1C,364,
-0x0000007101014f88,sub_7101014F88,316,
-0x00000071010150c4,sub_71010150C4,288,
-0x00000071010151e4,sub_71010151E4,92,
-0x0000007101015240,sub_7101015240,44,
-0x000000710101526c,sub_710101526C,76,
-0x00000071010152b8,sub_71010152B8,52,
-0x00000071010152ec,sub_71010152EC,80,
+0x0000007101014624,ResourceBmscdef::doCreate,1716,_ZN4ksys3snd15MusicDefinition9doCreate_EPhjPN4sead4HeapE!
+0x0000007101014cd8,sub_7101014CD8,324,_ZNK4ksys3snd15MusicDefinition19getMusicIndexByNameERKN4sead14SafeStringBaseIcEE
+0x0000007101014e1c,sub_7101014E1C,364,_ZNK4ksys3snd15MusicDefinition22getMusicCategoryByNameERKN4sead14SafeStringBaseIcEE
+0x0000007101014f88,sub_7101014F88,316,_ZNK4ksys3snd15MusicDefinition30getPriorityValueByCategoryNameERKN4sead14SafeStringBaseIcEE
+0x00000071010150c4,sub_71010150C4,288,_ZNK4ksys3snd15MusicDefinition27checkDerivedRuntimeTypeInfoEPKN4sead15RuntimeTypeInfo9InterfaceE
+0x00000071010151e4,sub_71010151E4,92,_ZNK4ksys3snd15MusicDefinition18getRuntimeTypeInfoEv
+0x0000007101015240,sub_7101015240,44,_ZN4ksys3snd15MusicDefinitionD2Ev
+0x000000710101526c,sub_710101526C,76,_ZN4ksys3snd15MusicDefinitionD0Ev
+0x00000071010152b8,sub_71010152B8,52,_ZThn32_N4ksys3snd15MusicDefinitionD1Ev
+0x00000071010152ec,sub_71010152EC,80,_ZThn32_N4ksys3snd15MusicDefinitionD0Ev
 0x000000710101533c,sub_710101533C,108,
 0x00000071010153a8,sub_71010153A8,116,
 0x000000710101541c,sub_710101541C,132,
diff --git a/src/KingSystem/Sound/CMakeLists.txt b/src/KingSystem/Sound/CMakeLists.txt
index b10f005e..1dfc73f1 100644
--- a/src/KingSystem/Sound/CMakeLists.txt
+++ b/src/KingSystem/Sound/CMakeLists.txt
@@ -1,6 +1,8 @@
 target_sources(uking PRIVATE
   sndInfoData.cpp
   sndInfoData.h
+  sndMusicDefinition.cpp
+  sndMusicDefinition.h
   sndResource.cpp
   sndResource.h
 )
diff --git a/src/KingSystem/Sound/sndMusicDefinition.cpp b/src/KingSystem/Sound/sndMusicDefinition.cpp
new file mode 100644
index 00000000..824a9a5d
--- /dev/null
+++ b/src/KingSystem/Sound/sndMusicDefinition.cpp
@@ -0,0 +1,99 @@
+#include "KingSystem/Sound/sndMusicDefinition.h"
+
+namespace ksys::snd {
+
+static sead::SafeString str_EventBgm = "EventBgm";
+
+// NON_MATCHING: two bigger diffs cause a different regalloc
+// 1. During `SafeString` generation of line
+// `auto categoryDefines_list = agl::utl::getResParameterList(root_list, "CategoryDefines");`
+// 2. Mis-ordered operations around
+// `addList(&mCategoryList, "CategoryDefines");`
+void MusicDefinition::doCreate_(u8* data, u32 file_size, sead::Heap* heap) {
+    auto archive = agl::utl::ResParameterArchive(data);
+    auto root_list = archive.getRootList();
+
+    auto musicDefines_list = agl::utl::getResParameterList(root_list, "MusicDefines");
+    if (musicDefines_list) {
+        s32 musicDefines_list_length = musicDefines_list.getResParameterObjNum();
+        if (musicDefines_list_length == 0) {
+            return;
+        }
+        mMusicDefines.allocBufferAssert(musicDefines_list_length, heap);
+
+        for (auto it = mMusicDefines.begin(), end = mMusicDefines.end(); it != end; ++it) {
+            auto param_obj = &it->param_obj;
+            it->name.init("", "Name", param_obj);
+            it->category.init("", "Category", param_obj);
+            it->volume.init(1, "Volume", param_obj);
+            it->is_enable_weather_filter.init(false, "IsEnableWeatherFilter", param_obj);
+            it->is_indoor_ducking.init(false, "IsIndoorDucking", param_obj);
+
+            mMusicList.addObj(param_obj,
+                              sead::FormatFixedSafeString<32>("MusicDefine_%d", it.getIndex()));
+        }
+
+        addList(&mMusicList, "MusicDefines");
+    }
+
+    auto categoryDefines_list = agl::utl::getResParameterList(root_list, "CategoryDefines");
+    if (categoryDefines_list) {
+        s32 categoryDefines_list_length = categoryDefines_list.getResParameterObjNum();
+        if (categoryDefines_list_length == 0)
+            return;
+        mCategoryDefines.allocBufferAssert(categoryDefines_list_length, heap);
+
+        for (auto it = mCategoryDefines.begin(), end = mCategoryDefines.end(); it != end; ++it) {
+            it->name.init("", "Name", &it->param_obj);
+            it->priority_value.init(0, "PriorityValue", &it->param_obj);
+
+            mCategoryList.addObj(&it->param_obj, sead::FormatFixedSafeString<32>(
+                                                     "CategoryDefine_%d", it.getIndex()));
+        }
+
+        addList(&mCategoryList, "CategoryDefines");
+    }
+
+    if (data)
+        applyResParameterArchive(agl::utl::ResParameterArchive(data));
+
+    for (auto& music : mMusicDefines) {
+        if (music.category.ref() == str_EventBgm) {
+            music.is_event_bgm = true;
+            mEventBgmCount++;
+        } else {
+            music.is_event_bgm = false;
+        }
+    }
+}
+
+int MusicDefinition::getMusicIndexByName(const sead::SafeString& name) const {
+    for (int i = 0; i < mMusicDefines.size(); i++) {
+        if (mMusicDefines.get(i)->name.ref() == name) {
+            return i;
+        }
+    }
+    return -1;
+}
+
+const sead::SafeString&
+MusicDefinition::getMusicCategoryByName(const sead::SafeString& name) const {
+    for (int i = 0; i < mMusicDefines.size(); i++) {
+        if (mMusicDefines.get(i)->name.ref() == name) {
+            return mMusicDefines.get(i)->category.ref();
+        }
+    }
+    return sead::SafeString::cEmptyString;
+}
+
+int MusicDefinition::getPriorityValueByCategoryName(const sead::SafeString& name) const {
+    for (int i = 0; i < mCategoryDefines.size(); i++) {
+        auto element = mCategoryDefines.get(i);
+        if (element->name.ref() == name) {
+            return element->priority_value.ref();
+        }
+    }
+    return 0;
+}
+
+}  // namespace ksys::snd
\ No newline at end of file
diff --git a/src/KingSystem/Sound/sndMusicDefinition.h b/src/KingSystem/Sound/sndMusicDefinition.h
new file mode 100644
index 00000000..da154dce
--- /dev/null
+++ b/src/KingSystem/Sound/sndMusicDefinition.h
@@ -0,0 +1,46 @@
+#pragma once
+
+#include <agl/Utils/aglParameter.h>
+#include <agl/Utils/aglParameterIO.h>
+#include <agl/Utils/aglParameterList.h>
+#include <agl/Utils/aglParameterObj.h>
+#include <container/seadBuffer.h>
+#include <resource/seadResource.h>
+#include "KingSystem/Utils/Types.h"
+
+namespace ksys::snd {
+
+class MusicDefinition : public sead::DirectResource, public agl::utl::IParameterIO {
+    SEAD_RTTI_OVERRIDE(MusicDefinition, sead::DirectResource)
+
+public:
+    struct MusicDefine {
+        agl::utl::Parameter<sead::SafeString> name;
+        agl::utl::Parameter<sead::SafeString> category;
+        agl::utl::Parameter<float> volume;
+        agl::utl::Parameter<bool> is_enable_weather_filter;
+        agl::utl::Parameter<bool> is_indoor_ducking;
+        bool is_event_bgm;
+        agl::utl::ParameterObj param_obj;
+    };
+    struct CategoryDefine {
+        agl::utl::Parameter<sead::SafeString> name;
+        agl::utl::Parameter<u32> priority_value;
+        agl::utl::ParameterObj param_obj;
+    };
+
+    void doCreate_(u8* data, u32 file_size, sead::Heap* heap) override;
+    int getMusicIndexByName(const sead::SafeString& name) const;
+    const sead::SafeString& getMusicCategoryByName(const sead::SafeString& name) const;
+    int getPriorityValueByCategoryName(const sead::SafeString& name) const;
+
+private:
+    sead::Buffer<MusicDefine> mMusicDefines;
+    agl::utl::ParameterList mMusicList;
+    int mEventBgmCount = 0;
+    sead::Buffer<CategoryDefine> mCategoryDefines;
+    agl::utl::ParameterList mCategoryList;
+};
+KSYS_CHECK_SIZE_NX150(MusicDefinition, 0x2A8);
+
+}  // namespace ksys::snd
\ No newline at end of file