3 Flexible Saxophone Trio-Sugar Plum Swing Out Dance of the Knock Kneed Fairy and Tango - three up-beat arrangements originating from Tchaikovsky's Nutcracker ballet re worked by Duncan Stubbs for Saxophone Trios. Flexible in its scoring this set contains a full score and four parts allowing performance on either 3 alto saxophones or 2 altos and a tenor Most suited to players at grades 4 and 5.