Music for matches can be modified at 80062089 (WCW vs. nWo World Tour v1.1 NTSC).

Here are some values:

0x00: Silence
0x01: Music 1
0x02: Music 2
0x03: Music 3
0x04: Music 4
0x05: FINAL MATCH OF DEATH
0x06: Options Menu music
0x07: FINAL MATCH OF DEATH Jingle ver.
0x08: Menu Music
0x09: Match End Music
0x0A: Event (League, Tournament) Victory Music
0x0B: Load/Save Menu Music
0x0C: Credits Music
0x0D: DEATH METAL HEADBANGER MUSIC (Do you want to continue the league?)
0x0E: Unable to win/lost Music
0x0F: Music 1 Alternate Ver.
0x10: Music 2 Alternate Ver.
0x11: Music 3 Alternate Ver.
0x12: Music 4 Alternate Ver.
0x13: FINAL MATCH OF DEATH Alternate Ver.