- Klaus Fischer
(b Vallerano, nr Viterbo, c1583; d Rome, Oct 3, 1629). Italian composer and organist. At the age of eight, at the choir school at S Luigi dei Francesi, Rome, he became a pupil of Nanino, whose daughter he later married. He completed his musical studies in 1607 and his first appointment was as organist and maestro di cappella of the Madonna del Ruscello, Vallerano. He later returned to Rome and became organist of S Maria in Trastevere, a post he held for six months from April 1615. He then worked simultaneously as vicemaestro di cappella there and as maestro di cappella of SS Trinità dei Pellegrini. From 26 May 1618 he was vicemaestro of S Lorenzo in Damaso. On 17 February 1626 he succeeded Vincenzo Ugolini as maestro di cappella of the Cappella Giulia at S Pietro and held the position until his death.
Agostini's output consists entirely of church music. He was a highly skilled contrapuntist. The five books of masses published in ...