Giovanni Filippo Dreyer (1703-1772) was born in Florence, Italy. As a castrato soprano he sang in several productions in Rome in 1723, including Vivaldi's Ercole sul Termodonte, then in Lucca and Florence in Sarri's Didone abbandonata. For the carnival of 1725-26, Dreyer sang Albinoni's operas in Venice. In 1726 he moved to Wroclaw, Poland, where he stayed for a long time. It was not until 1739 that he continued on to Prague to perform on the stage of Count von Sporck. During this period his compositions were publicly presented, including the intermezzo Vespetta e Valesio of 1728. In Prague he then took part in Vivaldi's Agrippa. In 1731 Dreyer accepted an invitation to Moscow: the imperial court generously rewarded his musical services. In 1733-34 Dreyer moved, following the imperial court, to St Petersburg, and if his activities as a castrato remain unknown, he certainly took on the role of impresario, coming to Florence to hire musicians for Russia, passing through Dresden and Vienna. Upon his return to Florence he took up holy orders, and from that moment dedicated himself to composing sacred music. In 1740 Dreyer composed an anthology of Salmi Brevi à 4 voci con Strumenti (Short Psalms for four voices with Instruments) whose autograph manuscript is conserved at Santissima Annunziata. The musical style of the eleven psalms (composed for vespers) is close to that of the Neapolitan school, with a distinction between the vocal part and the orchestral accompaniment. The harmonic writing is broad, clear and expressive, such as to be appreciated by the general public and not only by a small circle of specialists. This beautiful new production is sung by sopranos Rossana Bertini and Elena Cecchi Fedi, the choir Le Tems Revient and the instrumental ensemble Baroque Luminis, conducted by Giacomo Benedetti. whereas Widor’s influence is clear in the use of the organ and the classical forms.