Here you go.
Edit: Updated with
Skulltag music! (Thanks for pointing that out to me, DoomThroughDoom.)
How to Change Music (Local Only)In the console, type "changemus" followed by one of these codes:
Mega Man 8-Bit Deathmatch Music
AIRMUS - Air Man Stage (Mega Man 2)
BALMUS - Special Stage - Ballade (Mega Man )
BLIMUS - Blizzard Man Stage (Mega Man 6)
BOMMUS - Bomb Man Stage (Mega Man 1)
BRIMUS - Bright Man Stage (Mega Man 4)
BUBMUS - Bubble Man Stage (Mega Man 2)
CENMUS - Centaur Man Stage (Mega Man 6)
CHAMUS - Charge Man Stage (Mega Man 5)
COSMUS - Dr. Cossack Stage 2 (Mega Man 4)
CRAMUS - Crash Man Stage (Mega Man 2)
CREDMUS - Staff Roll ([/i]Mega Man 9[/i])
CRYMUS - Crystal Man Stage (Mega Man 5)
CTFMUS1 - CTF - New Grounds (Original Track 6 - Baiisilisk)
CTFMUS2 - CTF - Snakes in Space (Stage 42 (Original) - Kevvviiinnn)
CTFMUS3 - CTF - Melting Metal (Stage 20 (Original) - Kevvviiinnn)
CUTMUS - Cut Man Stage (Mega Man 1)
D_DM2INT - Main Menu (Mega Man 2)
D_DM2TTL - Title Theme (Mega Man 2)
D_TTFTW - Dust Man Stage (Mega Man 4) **ADDED IN V1B**
DARMUS - Dark Man Castle (Mega Man 5)
DIVMUS - Dive Man Stage (Mega Man 4)
DRBMUS - Wily Capsule (Mega Man 5)
DRIMUS - Drill Man Stage (Mega Man 4)
DUCKSPA - The Moon Stage (DuckTales)
DUSMUS - Dust Man Stage (Mega Man 4)
ELEMUS - Elec Man Stage (Mega Man 1)
ENDMUS - Opening 1 ([/i]Mega Man 9[/i])
ENKMUS - Special Stage 1 - Enker (Mega Man 10)
FINAMUS - Wily Machine Battle (Mega Man 10)
FIRMUS - Fire Man Stage (Mega Man 1)
FLAMUS - Flame Man Stage (Mega Man 6)
FLMMUS - Flash Man Stage (Mega Man 2)
GAMEWIN - All Stage Clear (Mega Man 4)
GEMMUS - Gemini Man Stage (Mega Man 3)
GRAMUS - Gravity Man Stage (Mega Man 5)
GUTMUS - Guts Man Stage (Mega Man 1)
GYRMUS - Gyro Man Stage (Mega Man 5)
HARMUS - Hard Man Stage (Mega Man 3)
HEAMUS - Heat Man Stage (Mega Man 2)
ICEMUS - Ice Man Stage (Mega Man 1)
KNIMUS - Knight Man Stage (Mega Man 6)
MAGMUS - Magnet Man Stage (Mega Man 3)
METMUS - Metal Man Stage (Mega Man 2)
MM1BOSS - Boss Battle (Mega Man 1)
MM1WBOSS - Wily Stage Boss Battle (Mega Man 1)
MM2BOSS - Boss Battle (Mega Man 2)
MM2VIC - Stage Clear (Mega Man 2)
MM3BOSS - Boss Battle (Mega Man 3)
MM3BOSS2 - Wily Stage Boss Battle (Mega Man 3)
MM3SEL - Stage Start (Mega Man 3)
MM4BOSS - Boss Battle (Mega Man 4)
MM4BOSS2 - Wily Stage Boss Battle (Mega Man 4)
MM5BOSS - Boss Battle (Mega Man 5)
MM6BOSS - Boss Battle (Mega Man 6)
MM6BOSS2 - Wily Machine Battle(Mega Man 6)
MM10FB1 - [Intro] Wily Machine Battle (Mega Man 10)
MM10FB2 - [Loop] Wily Machine Battle (Mega Man 10)
MM10RAIN - Wily Stage 1 Entrance (Mega Man 10)
MRXMUS - Mr. X Stage (Mega Man 6)
NAPMUS - Napalm Man Stage (Mega Man 5)
NEEMUS - Needle Man Stage (Mega Man 3)
NEWINT - Staff Roll (Mega Man 4)
PHAMUS - Pharaoh Man Stage (Mega Man 4)
PLAMUS - Plant Man Stage (Mega Man 6)
PUNMUS - Special Stage 2 - Punk (Mega Man 10)
QUIMUS - Quick Man Stage (Mega Man 2)
RINMUS - Ring Man Stage (Mega Man 4)
SHAMUS - Shadow Man Stage (Mega Man 3)
SKUMUS - Skull Man Stage (Mega Man 4)
SNAMUS - Snake Man Stage (Mega Man 3)
SPAMUS - Spark Man Stage (Mega Man 3)
STAMUS - Star Man Stage (Mega Man 5)
STATIK - Static
STOMUS - Stone Man Stage (Mega Man 5)
TOAMUS - Toad Man Stage (Mega Man 4)
TOGETH - Opening - Going Together (Mega Man 10)
TOMMUS - Tomahawk Man Stage (Mega Man 6)
TOPMUS - Top Man Stage (Mega Man 3)
TORNWIN - All Stage Clear (Mega Man 6)
W1MUS - Wily Stage 1 (Mega Man 1)
W2MUS - Wily Stage 2 (Mega Man 1)
W3MUS - Wily Stage 1 (Mega Man 2)
W4MUS - Wily Stage 2 (Mega Man 3)
WAVMUS - Wave Man Stage (Mega Man 5)
WILYCRI - Wily Crisis (Mega Man 10)
WNDMUS - Wind Man Stage (Mega Man 6)
WOOMUS - Wood Man Stage (Mega Man 2)
YAMMUS - Yamato Man Stage (Mega Man 6)
Skulltag Music
d_abode - Suspense (Doom, E1M5)
d_acid - At Doom's Gate (Doom, E1M1)
d_alpha - At Doom's Gate (Doom, E1M1)
d_area51 - The Demons from Adrian's Pen (Doom, E2M2)
d_atone - Getting Too Tense (Doom II, MAP28)
d_badlan - Message for the Archvile (Doom II, MAP20)
d_baston - Sinister (Doom, E2M6)
d_bldfrt - Deep Into the Code (Doom, E3M3)
d_blood - Waltz of the Demons (Doom, E2M7)
d_brick - Untitled (Doom, E2M9)
d_bunker - DOOM (Doom II, MAP05)
d_canyon - Donna to the Rescue (Doom, E3M2)
d_cargo - I Sawed the Demons (Doom, E2M1)
d_chambr - Sign of Evil (Doom, E1M8)
d_combat - On the Hunt (Doom, E1M6)
d_crate - The Demons from Adrian's Pen (Doom, E2M2)
d_credit - Can't identify.
d_deathc - Can't identify. (Hexen?)
d_delta - Kitchen Ace (and Taking Names) (Doom, E1M4)
d_disast - Can't identify. (Heretic?)
d_dispos - The Imp's Song (Doom, E1M2)
d_dmsec - For the love of god, I can't identify this, but I know it's been in a million Doom-related projects!
d_doomed - Mist Ache (Rise of the Triad, E1M6)
d_dspair - Can't identify. (Heretic?)
d_eco - Can't identify.
d_fire - Donna to the Rescue (Doom, E3M2)
d_forgot - Waiting for Romero to Play (Doom II, MAP18)
d_hatred - Getting Too Tense (Doom II, MAP28)
d_hollow - Intermission from DOOM (Doom II, Intermission Screen)
d_impius - Can't identify, but do recognize somewhat.
d_inv1 - Sinister (Doom, E2M6)
d_inv2 - Doom Victory Music (Doom, Episode's End)
d_inv3 - The Imp's Song (Doom, E1M2)
d_inv4 - On the Hunt (Doom, E1M6)
d_inv5 - Sign of Evil (Doom, E1M8)
d_keep - Untitled (Doom, E2M9)
d_magus - Battle with Magus (Chrono Trigger, Magus Battle)
d_massm - Can't identify, but it sure sounds neat!
d_mcknly - Kitchen Ace (and Taking Names) (Doom, E1M4)
d_mtcap - Into Sandy's City (Doom II, MAP09)
d_nakedt - The Docks (Heretic, E1M1)
d_nmare - Sinister (Doom, E2M6)
d_o - The Healer Stalks (Doom II,MAP02 )
d_oblivi - Very much can't identify.
d_orion - Getting Too Tense (Doom II, MAP28)
d_pain - Waltz of the Demons (Doom, E2M7)
d_pwrmil - Can't identify, but it sounds neat.
d_rave - What is Love? (Haddaway)
d_ruin - Waiting for Romero to Play (Doom II, MAP18)
d_sausag - Demons on the Prey (Doom, E1M7)
d_sigma - Hiding the Secrets (Doom, E1M9)
d_space - They're Going to Get You (Doom, E2M4)
d_stat12 - Can't identify, but it sounds neat.
d_stelth - Can't identify, but I do recognize it.
d_stlose - Can't identify.
d_storag - The Demons from Adrian's Pen (Doom, E2M2)
d_stwin - Can't identify. Very odd metal song.
d_surviv - Can't identify, but I like it!
d_temple - Demons on the Prey (Doom, E1M7)
d_test - Kitchen Ace (and Taking Names) (Doom, E1M4)
d_tohell - Sinister (Doom, E2M6)
d_train - Running From Evil (Doom II, MAP01)
d_ttftw - Livin' in the Sunlight, Lovin' in the Moonlight (Tiny Tim) Small loop. (As of v1b, this no longer works. See above.)
d_void - Mist Ache (Rise of the Triad, E1M6)
d_volcan - Shawn's Got the Shotgun (Doom 2, MAP07)
d_vrack - Lunar Outpost (Descent, Level 1)