Vox Dei (2)

Argentine rock band founded in 1967 in Quilmes, Greater Buenos Aires.
The group is best-known for "La Biblia" (1971), deemed the first rock opera and one of the first conceptual rock albums in Spanish language.
For legal reasons, the band is billed Willy Quiroga Vox Dei since 2017, with Quiroga as the only remaining original member.