Rosario Sonata, one of Bieber's masterpieces with a unique style, is a violin sonata collection that deals with the mystery of Maria's life. It is a work produced. A collection of albums for which the religious solemnity is sublimated into refined beauty, while Gunnar Letzbo's fine violin performance stands out. Beaver: Rosario Sonata House, Gunnar Retsubo (violin), etc.