A Bach and Webern-inspired piece in this genre successively removes notes from its central theme in each variation. Ligeti borrowed from his Musica Ricercata for the Aria, Hoquetus, Choral movement of his only work in this genre. During a shared cab ride, Gidon Kremer commissioned Sofia Gubaidulina to write Offertorium, (-5[1])a piece in this genre. A teenage Vladimir Horowitz accompanied a teenage Nathan (*) Milstein in the Soviet premiere of Szymanowski (“shim-uh-NOFF-ski”) and Prokofiev’s first pieces in this genre. A piece in this genre has a first movement Nocturne and includes its composer’s first use of the D-S-C-H motif. Shostakovich’s two pieces in this genre were premiered by David Oistrakh. The soloist enters after four bars in Sibelius’s D minor piece in this genre. For 10 points, name these pieces written for orchestra and the smallest string instrument. ■END■ (10[2])