[Ballets Russes] Diaghilev, Sergey Pavlovich. (1872–1929) [Pergolesi, Giovanni Battista. (1710–1736)] [Wassenaer, Count Unico Wilhelm van. (1692–1766)] Six Concertinos Attributed to Pergolesi AUTOGRAPH MANUSCRIPT PREPARED FOR AND INSCRIBED BY DIAGHILEVBound collection of 6 concertinos for 4 violins, viola, cello, and basso continuo in score, copied from a manuscript at the Conservatoire de Paris, as prepared for and subsequently inscribed by Sergei Diaghilev. Long attributed to Italian Baroque composer Pergolesi, these pieces are a famous case of reattribution within the canon of classical music, having been identified in recent decades as the work of the Dutch composer and statesman Count Unico