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.

Place of Warship emerged from Paracatu drawing heavily on the Swedish death metal tradition, with Entombed, Dismember, Bolt Thrower, and Benediction cited as primary influences. The trio of Humberto Costa on vocals and guitar, Daniel Sabino on bass, and Wesley Reis on drums built their sound around the classic HM-2-driven heaviness of Stockholm-style death, with a notable crust and d-beat undercurrent from Discharge and GBH. Their EP Rotting Soul captures the band's devotion to that crusty, abrasive old-school death aesthetic.

Placenta was a female-fronted thrash metal quintet from Belo Horizonte active in the mid-1980s, making them one of the early all-women metal acts to emerge from the Brazilian underground. Their sole documented release is the 1987 rehearsal demo Madness in the Bus, a raw document that touched on themes from politics to Satanism, though an unofficial self-titled CD from 1992 is also known to exist.

Plague Rages is a grindcore act from São Paulo with a catalog built on anti-fascist politics, social critique, and raw sonic violence across a steady stream of splits and full-lengths. Their 2021 album Hecatombe, released via Grindfather Productions, collects 35 tracks of punishing grind and stands as one of their most substantial statements. The band has maintained a prolific underground presence since forming, including a notable 2007 split with Japanese outfit Unholy Grave on Grindcore Against Reality.

Plankton was a heavy metal band from Belém that operated briefly before splitting up, releasing a demo titled Anomalia that circulated through the underground. Their themes touched on metal, life, death, and religion within a traditional heavy metal framework rooted in the northern Brazilian scene.