Regarded as one of the earliest black metal bands to emerge from Rio de Janeiro, Phuneral came together in late 1984 around guitarists Gilson Zumbi and Marcelo Tumor, with Jorge Abominável on bass, Gilson Bruxo on vocals, and Fabio Cadáver on drums. They played the local circuit — venues like Circo Voador and Crepúsculo de Cubatão — until disbanding in 1986, leaving behind only live recordings and photos rather than any studio release.

Piah Mater is the progressive death metal duo of vocalist/guitarist Luiz Felipe Netto and guitarist Igor Meira, whose dense, Opeth-influenced sound weaves dissonant extremity with extended atmospheric passages and a disregard for conventional song structures. Across three albums — "Memories of Inexistence" (2014), "The Wandering Daughter" (2018), and "Under the Shadow of a Foreign Sun" (2024, Code 666) — the duo have steadily carved out a more distinct identity, incorporating jazz-inflected saxophone work by Jørgen Munkeby on their latest record.

Picaporters is a doom and stoner rock trio from La Plata, Argentina, consisting of Juan Pablo Herrera Morales (bass/vocals), Lucas Barrue (guitar), and Juan Pablo Vázquez (drums). The band has released three albums — "Elefantes" (2013), "El Horror Oculto" (2016), and "XXIII" (2019) — all sung in Spanish and drawing heavily from 1970s doom, psychedelic, and heavy rock influences.

Piedra Cuarzo is a doom and stoner metal band from Jujuy, Argentina, formed in April 2019 from two pre-existing projects. The four-piece — Gonzalo Mariscal (bass), Nahuel Burgos (guitar), Antonio Cruz (guitar/vocals), and Marcos Rotten (drums) — released their debut EP "XUXUY" in September 2020, blending instrumental and psychedelic elements with heavy, sludge-inflected riffs.

Pietro Bernal is a São Paulo-based guitarist and composer working in the tradition of high-precision instrumental heavy metal and shred, releasing his debut album "Infinite Way" in 2022. His music favors technical fluency and melodic invention over brute force, sitting comfortably alongside the progressive instrumental metal that emerged from the guitar-virtuoso tradition.

Pigmachine were a short-lived São Paulo crossover thrash outfit whose members — Glauco on bass and vocals, Murillo Leite on guitar, and Fabio Moyses on drums — had previously played together in Apoleon. The band left behind a self-titled demo from late 1992, the "Nervum" split compilation with Apoleon in 1993, and the posthumously released "SP Punk / Studio Outtakes" in 1996.

Pilatus is a black metal band from Sapucaia do Sul whose catalog on Metal Archives includes the release The Horns of Supremacy. Their sound draws on raw, Satanic-themed black metal traditions, maintaining an underground independent presence throughout their activity.

Pile of Corpses is a death metal outfit from São Paulo trading in blunt, filth-soaked aggression with lyrics fixated on death, sex, violence, and war. Their 2014 album For Sex, For Violence, For Alcohol, along with the earlier release Santa Claus is Cumming... (2007), showcase the band's uncompromising approach to old-school brutality. The lineup of JP Amaral on vocals and guitar alongside André "Alcoolizator" Alba gives them a dual-vocal attack that adds to their relentless energy.

Pillars of Mountains is an atmospheric black metal solo project from Copiapó, in Chile's Atacama region, founded in 2016 by Ricardo Gallardo, who handles guitars, bass, synth, and lyrics, with Bryan Svank contributing vocals. The project explores themes of nature, astral travel, and the universe across two albums, Distance (2018) and Elevation (2019), both released through Desolated Woods Records.