Rename song constants using Japanese sound test menu

data/maps/SSAnne_2F_Corridor/map.json

@@ -2,7 +2,7 @@
   "id": "MAP_SSANNE_2F_CORRIDOR",
   "name": "SSAnne_2F_Corridor",
   "layout": "LAYOUT_SSANNE_2F_CORRIDOR",
-  "music": "BGM_FRLG_SS_ANNE",
+  "music": "MUS_SANTOAN",
   "region_map_section": "MAPSEC_S_S_ANNE",
   "requires_flash": false,
   "weather": "WEATHER_NONE",

data/maps/SSAnne_2F_Corridor/scripts.inc

@@ -29,7 +29,7 @@ EventScript_160903:: @ 8160903
 	textcolor 0
 	playse SE_KAIDAN
 	delay 5
-	playbgm BGM_FRLG_RIVAL, 0
+	playbgm MUS_RIVAL1, 0
 	addobject 1
 	delay 10
 	applymovement 1, Movement_1A75ED
@@ -52,7 +52,7 @@ EventScript_160903:: @ 8160903
 	msgbox gUnknown_8173164
 	closemessage
 	delay 10
-	playbgm BGM_FRLG_RIVAL_POSTBATTLE, 0
+	playbgm MUS_RIVAL2, 0
 	compare_var_to_value VAR_0x4001, 0
 	call_if 1, EventScript_1609FD
 	compare_var_to_value VAR_0x4001, 1