Almagor is a death metal band from Maracaibo, Zulia, Venezuela, formed in 2007, playing a brutal style that draws from both death metal and grindcore with Christian lyrical themes. The band released the EP Aborto comun in 2012 and their debut full-length Juzgados in 2014, earning recognition in Venezuela and across Latin America.

Almah was a São Paulo progressive power metal band founded in 2006 by Edu Falaschi, who had previously fronted Angra for a decade. Falaschi left Angra in 2012 to focus entirely on Almah, releasing albums including 'Motion' (2011), 'Unfold' (2013), and 'E.V.O.' (2016), and the band performed at Rock in Rio (2013) and ProgPower USA (2015) before eventually going on indefinite hiatus.

Alocer was a black metal band from Sorocaba, São Paulo, active from 1999 until splitting up in the 2000s. Their Bandcamp catalog includes releases such as "The Victory of Darkness Riders," "By Triumph of the Eternal Conquest," and the "Darkness Valleys" demo, all bearing the dark, conquest-themed atmosphere typical of Brazilian underground black metal.

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.