diff --git a/include/m_Do/m_Do_audio.h b/include/m_Do/m_Do_audio.h
index 892a606f8..5a7293b07 100644
--- a/include/m_Do/m_Do_audio.h
+++ b/include/m_Do/m_Do_audio.h
@@ -68,8 +68,8 @@ inline void mDoAud_bgmStreamPlay() {
     mDoAud_zelAudio_c::getInterface()->bgmStreamPlay();
 }
 
-inline void mDoAud_bgmStop(u32 param_0) {
-    mDoAud_zelAudio_c::getInterface()->bgmStop(param_0, 0);
+inline void mDoAud_bgmStop(u32 i_fadeTime) {
+    mDoAud_zelAudio_c::getInterface()->bgmStop(i_fadeTime, 0);
 }
 
 inline void mDoAud_bgmAllMute(u32 param_0) {
diff --git a/include/m_Do/m_Do_mtx.h b/include/m_Do/m_Do_mtx.h
index 09a4329c5..16421009e 100644
--- a/include/m_Do/m_Do_mtx.h
+++ b/include/m_Do/m_Do_mtx.h
@@ -161,7 +161,7 @@ public:
      * Translates the `now` Matrix by the given cXyz
      * @param xyz The xyz translation vector
      */
-    static inline void transS(cXyz const& xyz) { MTXTrans(now, xyz.x, xyz.y, xyz.z); }
+    static inline void transS(cXyz const& xyz) { transS(xyz.x, xyz.y, xyz.z); }
 
     /**
      * Translates a new Matrix by the given cXyz and then concatenates it with the `now` matrix
diff --git a/src/JAZelAudio/JAIZelAnime.cpp b/src/JAZelAudio/JAIZelAnime.cpp
index c93f40658..64c1cbfed 100644
--- a/src/JAZelAudio/JAIZelAnime.cpp
+++ b/src/JAZelAudio/JAIZelAnime.cpp
@@ -5,10 +5,18 @@
 
 #include "JAZelAudio/JAIZelAnime.h"
 #include "dolphin/types.h"
+#include "m_Do/m_Do_audio.h"
 
 /* 802AC830-802AC888       .text setAnimSound__11JAIZelAnimeFP3VecffUlSc */
 void JAIZelAnime::setAnimSound(Vec* pos, f32 frame, f32 rate, u32 mtrlSndId, s8 reverb) {
-    /* Nonmatching */
+    u32 r6 = (mtrlSndId & 0x00FFFFFF) + (reverb << 24);
+    if (rate == 0.0f) {
+        return;
+    }
+    if (rate < 0.0f) {
+        rate *= -1.0f;
+    }
+    setAnimSoundVec(mDoAud_zelAudio_c::getInterface(), pos, frame, rate, r6, 0);
 }
 
 /* 802AC888-802ACD34       .text startAnimSound__11JAIZelAnimeFPvUlPP8JAISoundPQ27JAInter5ActorUc */
diff --git a/src/JAZelAudio/JAIZelBasic.cpp b/src/JAZelAudio/JAIZelBasic.cpp
index 7667d7683..29e9de2fc 100644
--- a/src/JAZelAudio/JAIZelBasic.cpp
+++ b/src/JAZelAudio/JAIZelBasic.cpp
@@ -304,23 +304,23 @@ void JAIZelBasic::bgmStart(u32, u32, s32) {
 }
 
 /* 802A4658-802A4770       .text bgmStop__11JAIZelBasicFUll */
-void JAIZelBasic::bgmStop(u32 param_1, s32 param_2) {
+void JAIZelBasic::bgmStop(u32 i_fadeTime, s32 param_2) {
     if (mMainBgmNum != JA_BGM_GOMA && mMainBgmNum != JA_BGM_GOMA_2) {
         mSomeSpecialBGMFlag = 0;
     }
     if (mpMainBgmSound) {
-        mpMainBgmSound->stop(param_1);
+        mpMainBgmSound->stop(i_fadeTime);
     }
     mpMainBgmSound = NULL;
     mMainBgmNum = -1;
     if (mpStreamBgmSound) {
-        mpStreamBgmSound->stop(param_1);
+        mpStreamBgmSound->stop(i_fadeTime);
     }
     mpStreamBgmSound = NULL;
     mStreamBgmNum = -1;
     if (param_2 == 0) {
         if (mpSubBgmSound) {
-            mpSubBgmSound->stop(param_1);
+            mpSubBgmSound->stop(i_fadeTime);
             mpSubBgmSound = NULL;
         }
         mSubBgmNum = -1;
@@ -328,7 +328,7 @@ void JAIZelBasic::bgmStop(u32 param_1, s32 param_2) {
         field_0x00bb = 0;
         field_0x0206 = 0;
     }
-    demoBgmStop(param_1);
+    demoBgmStop(i_fadeTime);
     field_0x1f3c = 0;
     field_0x0201 = 0;
     mLastMinibossSubBGMType = 0;
diff --git a/src/JSystem/JAudio/JAIBasic.cpp b/src/JSystem/JAudio/JAIBasic.cpp
index 8ec816081..9c90098a6 100644
--- a/src/JSystem/JAudio/JAIBasic.cpp
+++ b/src/JSystem/JAudio/JAIBasic.cpp
@@ -228,7 +228,7 @@ void JAIBasic::startSoundBasic(u32, JAISound**, JAInter::Actor*, u32, u8, void*)
 }
 
 /* 80290708-802907E0       .text stopSoundHandle__8JAIBasicFP8JAISoundUl */
-void JAIBasic::stopSoundHandle(JAISound*, u32) {
+void JAIBasic::stopSoundHandle(JAISound*, u32 fadeTime) {
     /* Nonmatching */
 }
 
diff --git a/src/JSystem/JAudio/JAISequenceMgr.cpp b/src/JSystem/JAudio/JAISequenceMgr.cpp
index 509ff6c80..55374c679 100644
--- a/src/JSystem/JAudio/JAISequenceMgr.cpp
+++ b/src/JSystem/JAudio/JAISequenceMgr.cpp
@@ -186,7 +186,7 @@ void JAInter::SequenceMgr::storeSeqBuffer(JAISound**, JAInter::Actor*, u32, u32,
 }
 
 /* 80298208-802982C0       .text releaseSeqBuffer__Q27JAInter11SequenceMgrFP8JAISoundUl */
-void JAInter::SequenceMgr::releaseSeqBuffer(JAISound*, u32) {
+void JAInter::SequenceMgr::releaseSeqBuffer(JAISound*, u32 fadeTime) {
     /* Nonmatching */
 }
 
diff --git a/src/JSystem/JAudio/JAISound.cpp b/src/JSystem/JAudio/JAISound.cpp
index 24ac72072..b0db0d1b8 100644
--- a/src/JSystem/JAudio/JAISound.cpp
+++ b/src/JSystem/JAudio/JAISound.cpp
@@ -55,8 +55,8 @@ void JAISound::start(u32 param_1) {
 }
 
 /* 80298688-802986B8       .text stop__8JAISoundFUl */
-void JAISound::stop(u32 param_1) {
-    JAIBasic::msBasic->stopSoundHandle(this, param_1);
+void JAISound::stop(u32 fadeTime) {
+    JAIBasic::msBasic->stopSoundHandle(this, fadeTime);
 }
 
 /* 802986B8-8029878C       .text setVolume__8JAISoundFfUlUc */
diff --git a/src/JSystem/JUtility/JUTException.cpp b/src/JSystem/JUtility/JUTException.cpp
index b8edb0598..968de1dc2 100644
--- a/src/JSystem/JUtility/JUTException.cpp
+++ b/src/JSystem/JUtility/JUTException.cpp
@@ -264,7 +264,7 @@ bool JUTException::searchPartialModule(u32 address, u32* module_id, u32* section
         return false;
     }
 
-    OSModuleInfo* module = *(OSModuleInfo**)0x800030C8;
+    OSModuleInfo* module = __OSModuleList.head;
     for (; module != NULL; module = (OSModuleInfo*)module->link.next) {
         OSSectionInfo* section = (OSSectionInfo*)module->sectionInfoOffset;
         for (u32 i = 0; i < module->numSections; section++, i++) {
diff --git a/src/d/actor/d_a_bg.cpp b/src/d/actor/d_a_bg.cpp
index 3f95640c7..5aaa93c38 100644
--- a/src/d/actor/d_a_bg.cpp
+++ b/src/d/actor/d_a_bg.cpp
@@ -67,6 +67,8 @@ BOOL daBg_btkAnm_c::create(J3DModelData* modelData, J3DAnmTextureSRTKey* anmData
 void daBg_btkAnm_c::entry(J3DModelData* modelData) {
     anm->entry(modelData, 0.0f);
 
+    // Bg model material names that start with the prefix "SC_01" trigger special BTK animation behavior.
+    // These BTK animations will animate in sync with the global wave timer, as controlled by a SOND entry.
     const char * name = anm->getBtkAnm()->getUpdateMaterialName()->getName(0);
     if (name[0] == 'S' && name[1] == 'C' && name[2] == '_' && name[3] == '0' && name[4] == '1')
         special = 1;
diff --git a/src/d/actor/d_a_npc_ji1.cpp b/src/d/actor/d_a_npc_ji1.cpp
index 9bb953895..3f15dbf6b 100644
--- a/src/d/actor/d_a_npc_ji1.cpp
+++ b/src/d/actor/d_a_npc_ji1.cpp
@@ -769,7 +769,7 @@ BOOL daNpc_Ji1_c::kaitenAction(void*) {
                 if(field_0x2AC == 0x967) {
                     field_0xD70 = -1;
                     fopAcM_seStart(this, JA_SE_VS_JI_OPENING, 0);
-                    mDoAud_bgmStop(0x0000002D);
+                    mDoAud_bgmStop(45);
 
                     setAction(&daNpc_Ji1_c::plmoveAction, 0);
                 }
@@ -1072,7 +1072,7 @@ BOOL daNpc_Ji1_c::talkAction(void*) {
                         if(field_0x2AC == 0x98A) {
                             field_0xD70 = -1;
                             fopAcM_seStart(this, JA_SE_VS_JI_OPENING, 0);
-                            mDoAud_bgmStop(0x0000002D);
+                            mDoAud_bgmStop(45);
 
                             setAction(&daNpc_Ji1_c::plmoveAction, 0);
                         }
@@ -1088,7 +1088,7 @@ BOOL daNpc_Ji1_c::talkAction(void*) {
 
                     field_0xD70 = -1;
                     fopAcM_seStart(this, JA_SE_VS_JI_OPENING, 0);
-                    mDoAud_bgmStop(0x0000002D);
+                    mDoAud_bgmStop(45);
 
                     setAction(&daNpc_Ji1_c::plmoveAction, 0);
                 }
@@ -1558,10 +1558,10 @@ u32 daNpc_Ji1_c::evn_sound_proc_init(int staffIdx) {
     if(data) {
         switch(*data) {
             case 0:
-                mDoAud_bgmStop(0x0000002D);
+                mDoAud_bgmStop(45);
                 break;
             case 1:
-                mDoAud_bgmStart(0x80000018);
+                mDoAud_bgmStart(JA_BGM_HOUSE_G);
                 break;
             case 2:
                 fopAcM_seStart(this, JA_SE_VS_JI_ENDING, 0);
@@ -1975,7 +1975,7 @@ BOOL daNpc_Ji1_c::endspeakAction(void*) {
                 }
                 else if(l_msg->mStatus == fopMsgStts_BOX_CLOSED_e) {
                     l_msg->mStatus = fopMsgStts_MSG_DESTROYED_e;
-                    mDoAud_bgmStop(0x2D);
+                    mDoAud_bgmStop(45);
                     setAction(&daNpc_Ji1_c::reiAction, 0);
                 }
             }
diff --git a/src/d/actor/d_a_obj_mknjd.cpp b/src/d/actor/d_a_obj_mknjd.cpp
index f74746eb7..067482480 100644
--- a/src/d/actor/d_a_obj_mknjd.cpp
+++ b/src/d/actor/d_a_obj_mknjd.cpp
@@ -798,7 +798,7 @@ int daObjMknjD::Act_c::Execute(Mtx** i_mtx) {
             if (eventInfo.checkCommandDemoAccrpt()) {
                 m043F = 7;
 
-                mDoAud_bgmStop(0x1E);
+                mDoAud_bgmStop(30);
                 mDoAud_taktModeMuteOff();
 
                 dComIfGp_getAttention().mFlags |= 0x80000000;
diff --git a/src/d/d_s_menu.cpp b/src/d/d_s_menu.cpp
index d07a6cf76..d35860e58 100644
--- a/src/d/d_s_menu.cpp
+++ b/src/d/d_s_menu.cpp
@@ -146,7 +146,7 @@ static BOOL dScnMenu_Execute(menu_of_scene_class* i_this) {
         dComIfGp_setNextStage(room->stageName, startCode, room->roomNo, room->layerNo);
         if (strcmp(dComIfGp_getNextStageName(), "ENDING") == 0) {
             fopScnM_ChangeReq(i_this, PROC_ENDING_SCENE, PROC_OVERLAP0, 5);
-            mDoAud_bgmStop(0x1E);
+            mDoAud_bgmStop(30);
         } else {
             fopScnM_ChangeReq(i_this, PROC_PLAY_SCENE, PROC_OVERLAP0, 5);
             dComIfGs_setRestartRoomParam(0);
diff --git a/src/m_Do/m_Do_machine.cpp b/src/m_Do/m_Do_machine.cpp
index 2cfd83125..1085d859b 100644
--- a/src/m_Do/m_Do_machine.cpp
+++ b/src/m_Do/m_Do_machine.cpp
@@ -21,7 +21,7 @@
 #include "dolphin/gx/GXStruct.h"
 #include "dolphin/vi/vi.h"
 #include "m_Do/m_Do_DVDError.h"
-#include "m_do/m_Do_MemCard.h"
+#include "m_Do/m_Do_MemCard.h"
 #include "m_Do/m_Do_dvd_thread.h"
 #include "m_Do/m_Do_ext.h"
 #include "m_Do/m_Do_machine_exception.h"
diff --git a/src/m_Do/m_Do_printf.cpp b/src/m_Do/m_Do_printf.cpp
index 411e17572..5b4ba3516 100644
--- a/src/m_Do/m_Do_printf.cpp
+++ b/src/m_Do/m_Do_printf.cpp
@@ -44,7 +44,7 @@ extern "C" int search_partial_address(void* address, int* module_id, int* sectio
     if (address == NULL)
         return 0xFFFFFFFF;
 
-    OSModuleInfo* module = *(OSModuleInfo**)0x800030C8;
+    OSModuleInfo* module = __OSModuleList.head;
     for (; module != NULL; module = (OSModuleInfo*)module->link.next) {
         u32 i, addr;
         OSSectionInfo* section = (OSSectionInfo*)module->sectionInfoOffset;