主题延长,增音以通常音符两倍的时间来重复主旋律 The repetition of a theme in notes of usually double time value.
呈示部奏呜曲式音乐作品中表现主旋律的第一部分 The first part of a composition in sonata form that introduces the themes.
变奏曲一种给定主旋律的改编版,通过旋律的修饰和节奏或琴键的变化而从中分离出来 A form that is an altered version of a given theme, diverging from it by melodic ornamentation and by changes in harmony, rhythm, or key.
第一乐章以缓慢的主旋律开始。 A slow theme introduces the first movement.