The son of Pedro Servellón and Lucía Torres,[1] from a young age he played the viola, cello and violin.

He studied at the Rafael Olmedo National School of Music in that city, and in 1941, joined the Banda de los Supremos Poderes, the State Symphony Orchestra.

[2] In 1952, Servellón received a government scholarship to study composition and conducting at the Accademia Nazionale di Santa Cecilia in Rome, where he remained for four years.

By 1960, he was the Assistant Director of the Salvadoran Army Symphony Orchestra (Orquesta Sinfónica del Ejército de El Salvador).

[6] On his return to El Salvador, he briefly worked as head of the School of Music of the National Arts Centre.