Alone Path is a one-man raw black metal project from Cabo Frio, Rio de Janeiro, formed in 2024 by a multi-instrumentalist named Felipe. The project channels lo-fi, atmospheric black metal with lyrical themes rooted in depression, luciferianism, and occult introspection.

Alone with Whores is a black metal/grindcore band from Catanduva, São Paulo, formed in 2023 and released on the local D.I.Y. imprint Podreira Records. Their self-titled 2023 EP blends the abrasive speed of grindcore with black metal rawness, representing the underground noise scene of the interior of São Paulo state.

Alpha Scorpii was a melodic death metal band from Varginha, Minas Gerais, whose lineup included guitarists, a keyboardist, and a bassist working within the Gothenburg-influenced style prominent in Brazilian melodeath circles. Their 2006 EP "Crimson Sting" stands as their documented output before the band eventually split up.

Alquimia are a heavy and power metal band from Valparaíso, Chile, with roots going back to 1997. The band released their debut album Fe Contra Fe in 2001 and followed it fifteen years later with their self-titled record Alquimia in 2016; the current lineup features guitarists Jorge Meyer and Pablo Guzmán alongside vocalist Ivan De La Fuente and drummer Sergio Amor. Their themes of rebellion and spirituality have remained a constant throughout their long-running career in the Valparaíso metal scene.

Alta Tensão is one of the pioneering heavy metal bands from Campo Grande, Mato Grosso do Sul, founded in the early 1980s by Edson David and brothers Adilson and Marcos Fernandes. The band released three albums — "Metalmorfose" (1984), "Portal do Inferno" (1986), and "Nigeria" (1990) — with "Portal do Inferno" earning recognition from international heavy metal critics; after disbanding in 1993, they reunited in 2017 with a new lineup.

AlterGeist is a melodic power metal band from Rio de Janeiro formed in 2019, featuring vocalist and keyboardist Marcello Folds alongside guitarist Marlon Heiliger, bassist Felipe Oni, and drummer Robson Lima. Their 2021 EP "The Hourglass" showcases soaring vocals and harmonic guitar work rooted in the European power metal tradition.

Altú Págánach was a folk black metal band from Lavras, Minas Gerais, self-described as practitioners of "Pure Folk Tolkiean Black Metal," blending raw black metal with folk elements and lyrical themes drawn from J.R.R. Tolkien and old paganism. The project was led by the multi-instrumentalist known as Dungortheb, and their discography — including the 2018 EP "The Wizard" and a split "The Old Legacy" — was later compiled and reissued by Cold Art Industry.

Alyiria is a progressive symphonic death metal band from Teresina, Piauí, formed by vocalist Bruna Soares alongside Ícaro Allysson, João Arthur, and Leonardo César. Their debut album "Heiress" (2023) is a concept record tied to a dark fantasy novel, drawing comparisons to Fleshgod Apocalypse and Cradle of Filth for its hour-long runtime, neoclassical guitar solos, and densely orchestrated arrangements.

Amaduscias is a death metal band from Carazinho, Rio Grande do Sul, formed in 2003 and rooted in the fierce extreme metal tradition of southern Brazil. Starting as a black metal act, they evolved into brutal death metal territory, with lyrical themes centered on war, paganism, and the bloody revolutionary history of Rio Grande do Sul; their album "Conceived Annihilation" documents this direction.