melodic

a. 旋律优美的

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.

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

Melodic ascent and descent of pitch.

旋律的变移声调旋律的上升或下降