String Quartets Violins 2 Viola Violoncello -- See String quartets Here are entered separate compositions and collections of compositions for 2 violins, viola and violoncello.Separate compositions and collections for other combinations of four specific stringed instruments are entered under this heading followed by specification of instruments in score order.Collections of compositions for various combinations of four stringed instruments are entered under this heading without specification. --Suites; Variations; Waltzes; and similar headings with specification of instruments