Weekend Vivaldi: Concerto for 4 Violins, RV 580; Cello Cto in C, RV 401; Cto in C for 2 Trumpets, RV 537; Cto in B Flat for 2 Violins, RV 530; Violin Cto in D Minor, RV 249; Piccolo Cto in C, RV 443