降B大调嬉游曲K137这是一首在风格上与K136近似的作品,只是旋律不如K136那么华丽,与众不同的是它以慢乐章为开头。第一乐章降B大调行板乐曲采用二段体的曲式结构(A-B- A′-B′),开头主题带有转调风格,旋即转入F大调,在A′段31、34小节有一段小调的进行。这一乐章是慢乐章,它的强弱对比和变化显得比另外的乐章,甚至其他两首作品都多。由此也形成了这个乐章的特点,演奏要求:第一小节弱奏(piano),第二小节强奏(forte),第三小 This is a style similar to the K136 works, but the melody is not as gorgeous as the K136, the difference is that it starts with a slow movement. The first movement in the B major line of hitting music using two-piece music structure (AB- A’-B ’), the beginning of the theme with a transfer style, immediately transferred to F major, section A’ 31,34 There is a minor tune. This movement is a slow movement, whose strength contrasts and changes more than any other movement, or even two other works. This also formed the characteristics of this movement, performance requirements: the first bar of the piano (piano), the second bar section (forte), the third small