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.

Afterage was a progressive thrash metal band from Rio de Janeiro, Brazil, formed in 2021 and short-lived before splitting up. The project sat within Brazil's technically oriented extreme metal underground, blending progressive song structures with the aggression of thrash metal in the vein of bands like Death and Symphony X.

Afterbleed Splatter is a black/death metal band from João Pessoa, Paraíba, Brazil, active since 2022 and operating in the extreme underground. The band has appeared on multiple compilations including "The Sound of Satanic Hellbangers" Volumes I and II (2022) and "Metal Against Nazifascism" (2023), establishing a presence in the Brazilian extreme metal tape-trading and compilation circuit.

AfterDreams is a power metal band from Campana, Buenos Aires, Argentina, with a discography that includes the albums Wildfire (2012) and Nightmare (2017), the latter showcasing a hard rock and power metal approach rooted in themes of faith and perseverance. The band's lineup has featured members performing under stage names including Paulie Danger on vocals, Bryan Blade and Freddie Crazy on guitars, Ernie Raven on bass, and Nicko Thunder on drums. Active in the Argentine metal scene, AfterDreams have built a following through years of recorded output and live performances.