I'll play a melody without vibrato and with vibrato so you can see the difference.

我来演奏一段旋律,分有揉弦和没有揉弦两种表现,这样你们就能听出区别

耶鲁公开课 - 聆听音乐课程节选

Both are sort of subsets of melody, if you will.

两种都属于旋律的范畴

耶鲁公开课 - 聆听音乐课程节选

Let's pause it there, and as we said last time, it operates in that fashion, and that beginning gives us a good opportunity to make a distinction between two types of melody, between this idea of a motive and a theme.

稍微停一下,就像我们上次所说的那样,它是这样,编排的,乐曲的开始乐段给了我们很好的范例,来区分两种旋律类型,区分动机和主题

耶鲁公开课 - 聆听音乐课程节选