João Marcelino Arroio (or Arroyo; 4 October 1861, Porto — 18 May 1930, Colares (Sintra)) was a Portuguese composer. He is best known for his opera Amor de Perdição.A Arte musical By Michel'angelo Lambertini, page 56 He notably founded the Orfeon Académico de Coimbra in 1880.In illo tempore: estudantes, lentes e futricas By Trindade Coelho, page 87
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