Pasco 637

Pasco 637 takes their name from a specific street address in Ramos Mejía, a suburb in the western belt of Greater Buenos Aires — the house of a woman named Nely 'Tata' Bruno, which served as an unofficial rehearsal sanctuary for local rock and metal musicians across multiple generations, dating back as far as the mid-1960s when bands like Los Grillos and Semilla de este Tiempo gathered there, the latter including musicians who would later surface in influential Argentine acts. By naming themselves after this address, Pasco 637 make a statement about continuity and belonging, locating themselves within a lineage of suburban Buenos Aires rock culture that fed the heavy metal scene throughout the 1980s and 1990s. The band's core formed in 1998 under the name Belzebuth, playing until 2004, and then regrouped and renamed in 2014 — meaning their actual musical relationship spans decades even if the Pasco 637 identity dates to their return. The current lineup includes Jerónimo Deiros on vocals, Demián Rugna and Juan Manuel Delgado on guitars, Ariel Simonetti on bass, and Walter Sosa on drums. Rugna is notable as an accomplished horror film director — his 2017 film 'Aterrados' (Terrified) earned widespread critical acclaim, winning Best Picture in the Horror category at Fantastic Fest, and his 2023 follow-up 'Cuando Acecha la Maldad' (When Evil Lurks) gained international distribution — and Pasco 637 has contributed music to several of his films, creating an unusual crossover between Argentina's underground metal world and its genre cinema scene. Their 2019 debut album 'Eterno en el Tiempo' blends material drawn from their 20-year catalog with newer compositions, reflecting the clear influences of Megadeth, Iron Maiden, and the Argentine groove metal tradition of Almafuerte. Reviewers noted the album's strong guitar interplay and Argentine-flavored rhythmic sensibility, with 'Catan' singled out as a highlight for its dynamic construction. Their sound distills the authentic suburban Buenos Aires heavy metal spirit — direct, groove-laden, and built to be played loud.