Adrasteia is a black metal and ambient project from Chicago that has been quietly prolific since 2019. Across demos, splits, and singles, the project weaves glacial ambient textures into raw black metal, with titles like "Hymnes de Glaciers" and "Eisblut" underscoring its fixation on frozen, desolate soundscapes.

Heavy Death / Groove Metal from Abilene.

Adrenalin O.D. was a hardcore punk band formed in Elmwood Park, New Jersey in 1981, known for pioneering a comedic, speed-driven approach to hardcore that blended metal-tinged aggression with irreverent humor. Their 1984 debut The Wacky Hi-Jinks of Adrenalin O.D. and the 1986 follow-up Humungousfungusamongus helped define crossover thrash, with bands including NOFX, Anthrax, Municipal Waste, and Darkthrone citing them as an influence. The band disbanded in 1990 after four studio albums.

New York City groove metal supergroup featuring members of Dream Theater and Symphony X. High-profile musicians channeling prog pedigree into stripped-down, aggressive metal.

Palmyra/Middletown, Pennsylvania groove metal project. The name blends adrenaline with morphine — stimulation and sedation in chemical equilibrium.

Adrenochrome is a death metal and grindcore band from Rhode Island's Blackstone Valley. Their 2022 full-length "In Memoriam" delivers ten tracks of relentless extremity rooted in the New England grind tradition.

Adrex is a black metal project from New Jersey. Their 2024 debut "Beautiful souvenirs torn apart" is a dense, fourteen-track full-length that mines emotional devastation through a distinctly raw and personal black metal lens.

Adrienne is a metalcore band from Massachusetts. With a self-titled EP in 2021 and "Summer's Beginning" in 2023, the band plays emotionally charged metalcore that draws from the rich hardcore and metal traditions of the New England scene.

Adrift is a progressive death metal band from the small Southern Illinois town of Du Quoin. Their 2006 EP "Waterloo" is a compact three-track statement blending progressive ambition with death metal weight, emerging from an unlikely corner of the Midwest metal underground.