Robert Sieving's arrangement of Allegro for Double Strings by Antonio Vivaldi, RV593, originally a motet featuring the vocal settingof Psalm 69 for soprano, 2 oboes, 2 SATB choirs, and double string orchestra, provides the opportunity for two orchestras to performin opposition and have a musical conversation through fugal writing. Sieving has maintained Vivaldi's writing and sound, as the two orchestras battle it out to be the reigning orchestra. Each orchestra and section have interesting parts, with string crossings, minimal shifting, stylistic Baroque bow use, and call and response sections or echo sections. Invite a neighboring orchestra to perform this wonderful double string piece or divide your orchestra into two groups. Such a wonderful addition to our Vivaldi repertoire by Robert Sieving at Level 3.