Piano Trio No. 4 in B flat, for Clarinet, Piano and Cello, Op. 11 "Gassenhauer-Trio" - Beethoven: Piano Trio No. 4 in B flat, for Clarinet, Piano and Cello, Op. 11 "Gassenhauer-Trio": 3. Tema con Variazioni. Andante (为单簧管，钢琴和大提琴而作的降B大调第4号钢琴三重奏，作品11“格森豪尔三重奏” - 第三乐章 主题与变奏 - 行板)