Tony Osborne . Lively, rhythmic and jazzy, with all the fun you would expect from Tony Osborne's music. A BIBF commission in 1997, Blue Sunday is great fun to play and has been performed throughout Europe and America. Popular in performance, its 7/8 time signature offers few problems once the energy and momentum build towards a fast and rousing climax. A pizzicato line underpins the whole work and this has great rhythmic drive and momentum.. Performance Level: 6;8.. Grade: 6 - 8