String Quartet No. 2 in G Major, Op. 18 No. 2 - Beethoven: String Quartet No. 2 in G Major, Op. 18 No. 2 - II. Adagio cantabile - Allegro - Tempo I (G大调第2号弦乐四重奏，作品18之2 - 第二乐章 如歌的柔板，快板，回原速)