Which set of concertos by Baroque composer Antonio Vivaldi was dedicated to Victor Delfin?
La stravaganza La stravaganza ("The Extravagance"), Op. 4, is a set of concertos written by Antonio Vivaldi in 1712–1713. The set was first published in 1716 and was dedicated to Venetian nobleman Victor Delfin. All of the concertos are scored for solo violin, strings, and basso continuo; however, some movements require extra soloists (such as a second violin and/or cello solo). What is perhaps most extraordinary about "La stravaganza" is Vivaldi's remarkable inventiveness within a defined framework of instrumental and harmonic forces.
Orlando furioso (Vivaldi, 1714) Orlando furioso RV 819 (] , Teatro San Angelo, Venice 1714) is a three-act opera surviving in manuscript in Antonio Vivaldi's personal library, only partly related to his better known Orlando furioso (RV 728) of 1727. It is a recomposition of an "Orlando furioso" written by Giovanni Alberto Ristori which had been very successfully staged by Vivaldi and his father's "impresa" in 1713, and whose music survives in a few fragments retained in the score of RV 819. Therefore, Vivaldi's first cataloguer Peter Ryom did not assign the opera a RV number, but catalogued it as RV Anh. 84. The libretto was by Grazio Braccioli.