Mastodon

Emperor Of Sand	8
Once More 'Round The Sun	7

Mayhem

Ordo Ad Chao	10
De Mysteriis Dom Sathanas	9
European Legions [Compilation]	9
Chimera	9
Grand Declaration Of War	8
Esoteric Warfare	8

Megadeth

Rust In Peace	10
Peace Sells... But Who's Buying?	9
Killing Is My Business... And Business Is Good!	8
So Far, So Good... So What?	8
Countdown To Extinction	8
The World Needs A Hero	8
The System Has Failed	8
United Abominations	8
Youthanasia	6

Melechesh

Emissaries

8

Melvins

Houdini

8

Mercenary

11 Dreams	8
EverBlack	8
The Hours That Remain	8
Architect Of Lies	8

Mercyful Fate

Time

8

Meshuggah

I [EP]	9
Catch Thirtythree	9
ObZen	9
Chaosphere	8

Metal Church

Blessing In Disguise

8

Metallica

Ride The Lightning	9
Kill 'Em All	8
Master Of Puppets	8

Mgła

Exercises In Futility	10
Age Of Excuse	9
Mdłości [EP]	8
Further Down The Nest [EP]	8
With Hearts Toward None	8
Presence [EP]	7
Groza	7

Mono

You Are There	8
Hymn To The Immortal Wind	8

Monolithe

Monolithe I	8
Interlude Second [EP]	8

Moonsorrow

Kivenkantaja	10
Voimasta Ja Kunniasta	9
Suden Uni	8
Verisäkeet	8
V: Hävitetty	8
Tulimyrsky [EP]	8
Varjoina Kuljemme Kuolleiden Maassa	8
Jumalten Aika	8

Moonspell

Under Satanæ [Compilation]	10
Under The Moonspell [EP]	9
Night Eternal	9
Wolfheart	8
Irreligious	8
Darkness And Hope	8
The Antidote	8
Memorial	8

Morbid Angel

Altars Of Madness	9
Covenant	8
Domination	8
Gateways To Annihilation	8
Blessed Are The Sick	7

Morgul

All Dead Here...

8

Mors Principium Est

Inhumanity	8
The Unborn	8
Liberation = Termination	8

Motörhead

Ace Of Spades

8

Mourning Lenore

Loosely Bounded Infinities

10

My Dying Bride

The Dreadful Hours	10
The Light At The End Of The World	9
Turn Loose The Swans	8
The Angel And The Dark River	8
Like Gods Of The Sun	8
Songs Of Darkness, Words Of Light	8
A Line Of Deathless Kings	8
For Lies I Sire	7

Mylidian

Birth Of The Prophet

8

Nagelfar

Hünengrab Im Herbst	8
Srontgorrth	8

Naildown

World Domination

8

Necrophagist

Onset Of Putrefaction	9
Epitaph	9

Neglected Fields

Mephisto Lettonica

7

Negură Bunget

OM	10
Măiestrit	9
'N Crugu Bradului	8
Vîrstele Pămîntului	8

Neurosis

Through Silver In Blood	9
A Sun That Never Sets	9
The Eye Of Every Storm	9
Given To The Rising	9
Enemy Of The Sun	8
Times Of Grace	8
Pain Of Mind	7
The Word As Law	7
Souls At Zero	7
Sovereign [EP]	7
Neurosis & Jarboe [Collaboration]	7