Piano Concerto No. 1 in D minor, Op. 15 - Brahms: Piano Concerto No. 1 in D minor, Op. 15: 1. Maestoso - Poco più moderato (d小调第一号钢琴奏鸣曲，Op. 15 - 第一乐章 庄严的，稍微更中庸的)