23 Pieces For Flexible String Ensemble. 21 easy, characterful ensemble pieces, plus fun warm ups Flexible scoring for violin, viola, cello, and double bass with piano or CD accompaniment - from duets in any combination to large ensembles The level approximately corresponds to the Starters books for violin, viola, and cello - some parts use open strings only, some use open strings and first fingers, and some use all fingers, catering for groups of mixed ability Pupil books for violin, viola, cello, and double bass with lively illustrations Teacher's book with score, including piano part, and a CD with performances and backing tracks for all pieces / Niveau : Facile / Recueil / Alto