The Misanthrope is a post-metal/ambient/mathcore band from Derby, active since 2012. Their music spans a wide sonic palette from the delicate textures of ambient to the angular aggression of mathcore, unified by a post-metal approach to dynamics and atmosphere.

The Miser is a stoner metal/rock band from High Wycombe, Buckinghamshire, active since 2014. Their music delivers heavy, fuzz-drenched riffs and groove-driven stoner metal from the Chiltern Hills.

The Mist is a heavy metal band from Trier, Germany, formed in 2013. They play traditional heavy metal from Germany's oldest city.

The Moaning formed in Luleå, Sweden in 1994, working at the intersection of melodic black metal and melodic death metal during the genre's formative Scandinavian years. The band released a demo in 1994 and their sole full-length, Blood from Stone, in 1997, a record that blended harsh extremity with melodic sensibility characteristic of the era. Though the original release had limited distribution, Century Media remastered and reissued the album on CD and vinyl in 2013, introducing it to a new generation of listeners.

The Modern Age Slavery is a death metal and deathcore band from Reggio Emilia, Italy, formed in 2008. They deliver punishing, politically charged extreme metal combining death metal brutality with deathcore's crushing breakdowns.

The Monument is a black metal project from the UK, active since 2015. Their music channels the cold aggression and atmospheric darkness of black metal through compositions that stand as bleak sonic monuments.

The Moor is a progressive metal band from Venice, Italy, formed in 2013. They create intricate, technically ambitious progressive metal from the historic lagoon city.

The More I See formed in Peterborough, Cambridgeshire, England in 2003 and built a reputation for precision-driven thrash metal informed by progressive touches and sharp modern production. The band's catalog on Earache Records includes the albums The Wolves Are Hungry, The Unholy Feast, Tread the Darker Path, and The Disappearing Humans, the last of which was mixed by producer Scott Atkins and mastered at Abbey Road. Notable for the contribution of guitarist Gizz Butt, the band were active until 2018 and represented a technical thread within the UK heavy metal underground.

The Morgrotuskthululustoccultobskullty Horrormance is a black 'n' roll band from Thüngen, Germany, formed in 2011. Their extraordinarily long name belies a sound that fuses black metal's darkness with rock 'n' roll swagger.