Macbeth (Italy; Gothic)
Machiavel (Belgium; Progressive)
Machine Head (USA; Groove Metal)
Madball (USA; Hardcore)
Mad Max (Germany; Hard'N'Heavy)
Madness (UK; Ska)
Madrugada (Norway; Indie)
Magellan (USA; Progressive)
Magma (France; Progressive)
Magna Carta (UK; Prog Folk)
Magnitude 9 (USA; Prog Metal)
Magnum (UK; Melodic Rock)
Mago De Oz (Spain; Folk Metal)
Mahavishnu Orchestra (USA; Fusion)
Mahogany Rush (Canada; Hard Rock)
Majestic (Sweden; Heavy Metal)
Majesty (Germany; Heavy Metal)
Malevolent Creation (USA; Death)
Malice (USA; Heavy Metal)
Malice Mizer (Japan; Gothic)
Mamas And The Papas (USA; Folk Rock)
Man (UK; Prog Rock)
Mandalaband (UK; Progressive)
Mandragora Scream (Italy; Gothic)
Manfred Mann (UK; Rhythm-and-Blues)
Manfred Mann's Earth Band (UK; Art Rock)
Manic Street Preachers (UK; Alternative)
Manilla Road (USA; Heavy Metal)
Manowar (USA; Heavy Metal)
Mansun (UK; Brit Pop)
Manticora (Denmark; Power)
Marcy Playground (USA; Alternative)
Marduk (Sweden; Black)
Marillion (UK; Progressive)
Marilyn Manson (USA; Shock Rock)
Mark Boals (USA; Heavy Metal)
Mark Farner (USA; Pop Rock)
Mark Knopfler (UK; Soft Rock)
Mark Spiro (USA; AOR)
Marshall Law (UK; Heavy Metal)
Marshall Tucker Band (USA; Southern Rock)
Mars Volta (USA; Progressive)
Marty Friedman (USA; Guitar Virtuoso)
Marvin Gaye (USA; Soul)
Massacra (France; Thrash)
Massacre (USA; Death)
Masterplan (Germany; Heavy Metal)
Masters Apprentices (Australia; Classic Rock)
Master's Hammer (Czechoslovakia; Prog Black)
Mastodon (USA; Prog Metal)
Matchbox Twenty (USA; Alternative)
Matching Mole (UK; Jazz Rock)
Matthew Good (Canada; Alternative)
Maximum The Hormone (Japan; Punk Metal)
Mayhem (Norway; Black)
MC5 (USA; Proto Punk)
Meat Loaf (USA; Operatic Rock)
Medicine Head (UK; Blues Rock)
Megadeth (USA; Thrash)
Megaherz (Germany; Neue Deutsche Harte)
Mekong Delta (Germany; Prog Thrash)
Melanie (USA; Folk Rock)
Meliah Rage (USA; Heavy Metal)
Melt Banana (Japan; Noisecore)
Melvins (USA; Alternative)
Mercenary (Denmark; Melodic Death)
Merciless (Sweden; Brutal Thrash)
Mercyful Fate (Denmark; Heavy Metal)
Merseybeats (UK; Beat)
Meshuggah (Sweden; Avant-Garde Metal)
Messiah (Switzerland; Thrash)
Metal Church (USA; Heavy Metal)
Metalium (Germany; Power)
Metallica (USA; Thrash)
Meteors (UK; Psychobilly)
Michael Angelo Batio (USA; Shred)
Michael Bormann (Germany; Melodic Rock)
Michael Kiske (Germany; Melodic Rock)
Michael Learns To Rock (Denmark; Pop Rock)
Michael Schenker Group (Germany; Hard Rock)
Mick Abrahams (UK; Blues Rock)
Mick Jagger (UK; Classic Rock)
Midge Ure (UK; New Wave)
Midnight Oil (Australia; Indie)
Mike Bloomfield (USA; Blues Rock)
Mike Oldfield (UK; Art Rock)
Mike + The Mechanics (UK; Art Rock)
Miles Davis (USA; Jazz Fusion)
Millencolin (Sweden; Punk)
M.ill.ion (Sweden; Hard Rock)
Minimal Compact (Israel; New Wave)
Ministry (USA; Industrial)
Minor Threat (USA; Hardcore)
Minotaur (Germany; Thrash)
Misanthrope (France; Sympho Metal)
Misery Index (USA; Deathgrind)
Misfits (USA; Punk)
Mission (UK; Gothic)
Moahni Moahna (Sweden; Prog Metal)
Mob Rules (Germany; Power)
Moby Grape (USA; Acid Rock)
M.O.D. (USA; Crossover)
Mokoma (Finland; Thrash)
Molly Hatchet (USA; Southern Rock)
Molotov (Mexico; Rap Metal)
Monkees (USA; Pop Rock)
Monks (Germany; Garage)
Mono Inc. (Germany; Gothic Industrial)
Monster Magnet (USA; Stoner)
Monstrosity (USA; Death)
Montrose (USA; Hard Rock)
Moody Blues (UK; Art Rock)
Moonlight (Poland; Gothic Art Rock)
Moonsorrow (Finland; Viking Metal)
Moonspell (Portugal; Gothic Metal)
Morbid Angel (USA; Death)
Mordred (USA; Funk Thrash)
Morgana Lefay (Sweden; Heavy Metal)
Morgoth (Germany; Death)
Morphine (USA; Indie)
Morrissey (UK; Indie)
Mortal Sin (Australia; Thrash)
Mortem (Peru; Death)
Mortician (USA; Deathgrind)
Mortification (Australia; Christian Thrash)
Mortiis (Norway; Dark Wave)
Mostly Autumn (UK; Progressive)
Motley Crue (USA; Hard Rock)
Motorhead (UK; Hard Rock)
Mott The Hoople (UK; Glam Rock)
Mountain (USA; Blues Rock)
Mourning Beloveth (Ireland; Doom Death)
Move (UK; Art Rock)
Moxy (Canada; Hard Rock)
MP (Germany; Heavy Metal)
Mr. Big (UK; Melodic Rock)
Mr. Big (USA; Hard Rock)
Mr. Bungle (USA; Avant Metal)
Mr. Mister (USA; AOR)
Mucky Pup (USA; Hardcore)
Mud (UK; Glam Rock)
Muddy Waters (USA; Blues)
Mudhoney (USA; Grunge)
Mudvayne (USA; Nu Metal)
Mungo Jerry (UK; Skiffle)
Murderdolls (USA; Glam Metal)
Muse (UK; Prog Rock)
Mushroomhead (USA; Nu Metal)
Music Machine (USA; Garage Rock)
My Bloody Valentine (Ireland; Shoegaze)
My Chemical Romance (USA; Alternative Pop Punk)
My Dying Bride (UK; Doom)
Mystery (Canada; Art Rock)
Mystic Circle (Germany; Black)
Mystic Prophecy (Germany; Speed Metal)
Mythos (Germany; Kraut)