Adiaphoria explores progressive metal from the Île-de-France region since 2011, their Greek philosophical name meaning "indifference" reflecting a coolly cerebral approach to the genre. Their compositions favor intellectual exploration over emotional display.

Adimiron has undergone a striking evolution from melodic death and black metal into progressive thrash and death territory since forming in Rome in 2009. Their willingness to reinvent their sound speaks to the creative restlessness of the Roman extreme metal underground.

Adliga is a post-metal and doom metal band from Minsk, Belarus, whose name means "thaw" in Belarusian, with lyrics rooted in Belarusian literature, folklore, and poetry. Signed to Sliptrick Records, the band released the debut EP "Kali Paciače Nieba" (2020) and the full-length "Vobrazy," delivering a crestfallen blend of stripped-back doom filtered through a post-metal framework.

Adligate are a death metal, groove metal, and thrash metal band from Hagen, Germany, formed in 2019 in one of the Ruhr Valley's most metal-rich cities. Their sound blends the rhythmic punch of groove metal with the velocity of thrash and the weight of death metal.

Admarsior practices pagan black metal from Pescara in Abruzzo since 2020, channeling pre-Christian spiritual traditions through tremolo-picked ferocity and atmospheric passages. Their Adriatic-coast origins add a distinctive Mediterranean edge to the northern European pagan metal template.

An Antwerp symphonic metal project formed in 2018 that melds Lovecraftian horror with tongue-in-cheek pirate metal theatrics. Their debut album Necronomiquest (2019) features tracks like "Night of the Pirate Robots from the Dark Beneath," with the project handled largely by a single composer overseeing guitars, bass, vocals, and drum programming.

Admiral Sir Cloudesley Shovell creates psychedelic hard rock and heavy metal from Hastings since 2012, named after the 17th-century English naval commander whose fleet famously wrecked off the Isles of Scilly. Their historical-naval name matches the swaggering, vintage-flavored heaviness of their seaside sound.

Admirality delivers slam and brutal death metal from Bryansk since 2012. Their naval-command name brings maritime authority to over a decade of crushing brutality from this western Russian city near the Ukrainian and Belarusian borders.

Admit plays heavy metal from Östersund in Jämtland since 2017. From this northern Swedish city on the shores of Lake Storsjön — home of Sweden's own lake monster legend — they deliver classic heavy metal.