Aeri Satur is a black metal and dark ambient project from Sorocaba, São Paulo, Brazil, active since 2023 under the creative alias Sagarana. The project blends raw and depressive black metal with dungeon synth and experimental atmospheric elements, incorporating literary references to Tolkien, Guimarães Rosa, and Florbela Espanca into its Portuguese-inflected songwriting. Their 2024 album "Vreedas" exemplifies their oneiric sound, weaving extended compositions through cosmological and philosophical themes.

Aeshma is a black metal band from Governador Valadares, Minas Gerais, Brazil, originally formed in 2002 and later relaunched around 2019. The band operates in the underground Brazilian black metal tradition, drawing on themes of darkness and misanthropy, with founding member Nocturnus Tepesh serving as vocalist and guitarist throughout the project's lifespan.

Aeterna Ordo Mortis is a depressive black metal project based in São Paulo, Brazil, formed in 2023 by vocalist and multi-instrumentalist Luan Viktor. The project explores existential despair, mental anguish, and the imbalance of human existence through a raw, atmospheric DSBM sound, as heard on their 2023 debut EP "Far Beyond the Agony" — a five-track, twenty-minute descent into introspective darkness.

Aeternal Nox is a melodic death/black metal band from the La Candelaria neighborhood of Bogotá, Colombia, formed in 2022 by a collective of professional musicians with roots in independent metal projects. The band draws from black and death metal traditions, building their lyrical world around existentialism, nihilism, and occult mythology. They release independently and have published material through their Bandcamp page.

Aetherea is a symphonic power metal band from São Paulo, Brazil, whose roots trace back to a project conceived by guitarists Fábio Matos and Everton Coro. Drawing comparisons to Nightwish, Epica, and Angra, the band pairs soaring vocals with orchestral arrangements and technically proficient guitar work, releasing the full-length "Through Infinite Dimensions" in 2021 and the "Wheel of Fate" EP in 2025.

Aeuphoria is a technical death metal band from Del Viso, Buenos Aires, Argentina, whose five-piece lineup — featuring Gustavo Alvarez Vivar on vocals, Damian Guardo and Nahuel Gannon on guitars, Franco Fuentes on bass, and Andres Fernandez on drums — came together in 2015 and released their debut album Æthernal Velum in 2016. The record blends the clinical precision of technical death metal with atmospheric and black metal textures, drawing comparisons to both Cascadian and Scandinavian approaches to extreme music. Æthernal Velum was recorded and produced by Alejandro Olmedo and earned the band attention from international metal publications for its ambitious scope.

Afasia was a symphonic black metal band from Conchal, São Paulo, Brazil, who released their debut album "Far from Existence, Close to the Essence" in May 2023 before disbanding. The record was praised in underground circles for its excellently orchestrated melodic black metal in the vein of late-1990s and early-2000s European symphonic black metal, and the band followed it with a second release, "In the Arms of Death."

Affront is a thrash/death metal band from Rio de Janeiro, Brazil, formed in 2019 and rooted in the aggressive South American extreme metal tradition. Their 2019 debut album "World in Collapse," released through Great Dane Records, channels the ferocity of Slayer, Sodom, and Sepultura, with lyrics addressing social violence, favela life, and existential collapse.

After:Life was a power metal band from São Paulo, Brazil, active from 2011 until their split-up. Operating in the tradition of Brazilian melodic power metal, the band explored themes of philosophy, loss, and science fiction, releasing material through Die Hard Records before eventually disbanding.