Organ Concerto No. 2 in B-Flat Major, Op. 4/2, HWV 290 - Handel: Organ Concerto No. 2 in B-Flat Major, Op. 4/2, HWV 290: I. A tempo ordinario, e staccato (降B大调第2号管风琴协奏曲，作品290 - 第一乐章 一个节奏和一个断奏)