Organ Concerto No. 10 in D Minor, Op. 7, No. 4, HWV 309 - Handel: Organ Concerto No. 10 in D Minor, Op. 7, No. 4, HWV 309: III. Organo ad libitum: Fuga. Larghetto (D小调第10号管风琴协奏曲，作品309 - 第三乐章 管风琴自由演奏：赋格 - 小广板)