12 Violin Concertos, Op. 4 - "La stravaganza" - Rev. Ephrikian / Concerto No. 1 in B flat major, RV 383a : Vivaldi: 12 Violin Concertos, Op. 4 - "La stravaganza" - Rev. Ephrikian / Concerto No. 1 in B flat major, RV 383a: 1. Allegro