2 scores (16 pages each) ;35 cm. "Parts" are designated for violin and violoncello but include the other instrument throughout. For violin and violoncello. Cover title. Special Collections Scholz copy: performance notes and signatures in the hand of János Scholz; accompanied by a note in the hand of János Scholz. Special Collections Cowling copy: part in score format for violoncello only. Special Collections Eisenberg copy: performance notes in the hand of Maurice Eisenberg. Special Collections Varga copy: performance notes in the hand of Laszlo Varga; includes additional copy of scores in photoreproduced form with further annotations in Varga's hand. Special Collections Greenhouse copy: performance notes and manuscript additions in the hand of Bernard Greenhouse. Includes 2 additional copies; copy [3] imperfect, missing p. 3-10 of violoncello "part"; also includes 1 photoreproduced copy with performance notes in Greenhouse's hand. Copy in Special Collections Aronson: violin part lacking ; annotation on cover of cello part in the hand of Lev Aronson ; performance notes in the hand of Lev Aronson. Copy in Special Collections Aronson: violin part lacking ; includes 2 photocopies of cello part ; 1 cello part played by violinist, with performance notes in an unknown hand ; performance notes in the hand of Lev Aronson. Special Collections Georgiev copy: written on title page, in black ink: Lubomir Georgiev, gift from Dr. Clarke, Aug. '96. Special Collections Davies copy: performance notes and manuscript additions, in pencil, in the hand of Marion Davies; includes photocopied pages, also annotated.