Piano Trio No. 4 in B-Flat Major, Op. 11 "Gassenhauer" - Piano Trio No. 4 in B-Flat Major, Op. 11 "Gassenhauer": III. Thema: Pria ch'io l'impegno (Allegretto) mit Variationen (降B大调单簧管，大提琴和钢琴三重奏 - 第三乐章 小快板)