diff --git a/th03_op.asm b/th03_op.asm
index d68420cf..ceda5aac 100644
--- a/th03_op.asm
+++ b/th03_op.asm
@@ -1636,7 +1636,7 @@ arg_2		= byte ptr  6
 		mov	ah, 0
 		shl	ax, 2
 		mov	bx, ax
-		pushd	dword ptr [bx+5F2h]
+		pushd	_MUSIC_TITLES[bx]
 		call	graph_putsa_fx
 		graph_accesspage byte ptr word_F828+1
 		push	10h
@@ -1653,7 +1653,7 @@ arg_2		= byte ptr  6
 		mov	ah, 0
 		shl	ax, 2
 		mov	bx, ax
-		pushd	dword ptr [bx+5F2h]
+		pushd	_MUSIC_TITLES[bx]
 		call	graph_putsa_fx
 		leave
 		retn	4
@@ -2275,7 +2275,7 @@ loc_AD52:
 		mov	ah, 0
 		shl	ax, 2
 		mov	bx, ax
-		pushd	dword ptr [bx+646h]
+		pushd	_MUSIC_FILES[bx]
 		call	snd_load
 		add	sp, 6
 		kajacall	KAJA_SONG_PLAY
@@ -4756,6 +4756,8 @@ include libs/master.lib/respal_exist[data].asm
 include libs/master.lib/draw_trapezoid[data].asm
 include th02/formats/pfopen[data].asm
 include th03/formats/cdg[data].asm
+public _MUSIC_TITLES
+_MUSIC_TITLES	label dword
 		dd aNo_1B@cVOul		; "NO.1	    　夢は時空を越えて	   "
 		dd aNo_2B@B@Select	; "NO.2	   　 　 Selection	   "
 		dd aNo_3Umx		; "NO.3		 東方妖恋談	   "
@@ -4777,6 +4779,8 @@ include th03/formats/cdg[data].asm
 		dd aNo_19CRlvLxu	; "NO.19	 霊人の休日	   "
 		dd aB@b@		; "	      　　		   "
 		dd aB@b@vpvxvivf	; "	      　　Ｑｕｉｔ	   "
+public _MUSIC_FILES
+_MUSIC_FILES	label dword
 		dd aOp_m_0		; "op.m"
 		dd aSelect_m_0		; "select.m"
 		dd a00mm_m		; "00mm.m"
diff --git a/th04_op.asm b/th04_op.asm
index 5c237fd0..47452989 100644
--- a/th04_op.asm
+++ b/th04_op.asm
@@ -2624,7 +2624,7 @@ arg_2		= byte ptr  6
 		mov	ah, 0
 		shl	ax, 2
 		mov	bx, ax
-		pushd	dword ptr [bx+0EB6h]
+		pushd	_MUSIC_TITLES[bx]
 		call	graph_putsa_fx
 		graph_accesspage byte ptr word_12DBC+1
 		push	10h
@@ -2640,7 +2640,7 @@ arg_2		= byte ptr  6
 		mov	ah, 0
 		shl	ax, 2
 		mov	bx, ax
-		pushd	dword ptr [bx+0EB6h]
+		pushd	_MUSIC_TITLES[bx]
 		call	graph_putsa_fx
 		leave
 		retn	4
@@ -3039,7 +3039,7 @@ loc_C4E4:
 		mov	ah, 0
 		shl	ax, 2
 		mov	bx, ax
-		call	snd_load pascal, dword ptr [bx+0F16h], SND_LOAD_SONG
+		call	snd_load pascal, dword ptr _MUSIC_FILES[bx], SND_LOAD_SONG
 		kajacall	KAJA_SONG_PLAY
 
 loc_C51D:
@@ -5857,6 +5857,8 @@ aZun02_bft	db 'zun02.bft',0
 aZun04_bft	db 'zun04.bft',0
 aZun01_bft	db 'zun01.bft',0
 aZun03_bft	db 'zun03.bft',0
+public _MUSIC_TITLES
+_MUSIC_TITLES	label dword
 		dd aNo_1MSzlBLotus	; "No.1	  幻想郷  〜 Lotus Land	Story"
 		dd aNo_2WitchingDr	; "No.2		Witching Dream	     "
 		dd aNo_3SeleneSLig	; "No.3		Selene's light       "
@@ -5881,6 +5883,8 @@ aZun03_bft	db 'zun03.bft',0
 		dd aNo_22MSzvPzrl	; "No.22	  幻想の住人	     "
 		dd asc_105B2		; "				     "
 		dd aB@b@vpvxvivf	; "	       　　Ｑｕｉｔ	     "
+public _MUSIC_FILES
+_MUSIC_FILES	label dword
 		dd aOp_2		; "op"
 		dd aSt00		; "st00"
 		dd aSt10		; "st10"
diff --git a/th05_op.asm b/th05_op.asm
index 21800c54..35701f55 100644
--- a/th05_op.asm
+++ b/th05_op.asm
@@ -2965,8 +2965,8 @@ loc_BF14:
 		mov	ah, 0
 		shl	ax, 2
 		add	bx, ax
-		mov	ax, [bx+0FF0h]
-		mov	dx, [bx+0FEEh]
+		mov	ax, word ptr _MUSIC_TITLES+2[bx]
+		mov	dx, word ptr _MUSIC_TITLES[bx]
 		mov	[bp+var_2], ax
 		mov	[bp+var_4], dx
 		add	si, 60h
@@ -3336,7 +3336,7 @@ var_1		= byte ptr -1
 		mov	byte ptr word_13E94, 0
 		mov	bx, music_game
 		add	bx, bx
-		mov	ax, [bx+14A0h]
+		mov	ax, MUSICROOM_TRACKCOUNTS[bx]
 		mov	musicroom_trackcount, ax
 		mov	byte_13E96, 0
 		call	cdg_freeall
@@ -3514,7 +3514,7 @@ loc_C698:
 		mov	word_1403A, 0
 		mov	bx, music_game
 		add	bx, bx
-		mov	ax, [bx+14A0h]
+		mov	ax, MUSICROOM_TRACKCOUNTS[bx]
 		mov	musicroom_trackcount, ax
 		push	0
 		call	sub_C441
@@ -3522,7 +3522,7 @@ loc_C698:
 		call	sub_C3F9 pascal, 0
 		mov	bx, music_game
 		imul	bx, 78h
-		call	snd_load pascal, dword ptr [bx+1246h], SND_LOAD_SONG
+		call	snd_load pascal, dword ptr _MUSIC_FILES[bx], SND_LOAD_SONG
 		kajacall	KAJA_SONG_PLAY
 
 loc_C6E3:
@@ -3564,7 +3564,7 @@ loc_C6F1:
 		mov	ah, 0
 		shl	ax, 2
 		add	bx, ax
-		call	snd_load pascal, dword ptr [bx+1246h], SND_LOAD_SONG
+		call	snd_load pascal, dword ptr _MUSIC_FILES[bx], SND_LOAD_SONG
 		kajacall	KAJA_SONG_PLAY
 
 loc_C767:
@@ -5736,6 +5736,8 @@ MUSICROOM_GAME		dd aMUSICROOM_TH01
 		dd aMUSICROOM_TH03
 		dd aMUSICROOM_TH04
 		dd aMUSICROOM_TH05
+public _MUSIC_TITLES
+_MUSIC_TITLES	label dword
 		dd aTH01_01	; "No.1		  A Sacred Lot	       "
 		dd aTH01_02	; "No.2		   永遠の巫女	       "
 		dd aTH01_03	; "No.3	   The Positive	and Negative   "
@@ -5886,6 +5888,8 @@ MUSICROOM_GAME		dd aMUSICROOM_TH01
 		dd    0
 		dd    0
 		dd    0
+public _MUSIC_FILES
+_MUSIC_FILES	label dword
 		dd aR_00		; "r_00"
 		dd aR_01		; "r_01"
 		dd aR_02		; "r_02"