Concerto for 2 Cellos, Strings and Continuo in G minor, R.531 - Vivaldi: Concerto for 2 Cellos, Strings and Continuo in G minor, R.531: 1. Allegro (为2把大提琴，弦乐组和通奏低音而作的G小调协奏曲，作品531 - 第一乐章 快板)