Piano Sonata No. 14 In C-Sharp Minor, Op. 27 No. 2 - Piano Sonata No. 14 In C-Sharp Minor, Op. 27 No. 2 "Moonlight Sonata" I. Adagio Sostenuto (升C小调第14号钢琴奏鸣曲，作品27之2“月光奏鸣曲”：第一乐章 持续的柔板)