If we have a singer,the singer's going to be singing a text.Right?

如果这里有一个歌手，歌手会唱一段词，是吧？

耶鲁公开课 - 聆听音乐课程节选

There's the IV chord and there's So you sing this nice and loud for me, please.There's the tonic.Ready,go.

然后出现了IV级和弦，紧接着是V级和弦，又回到I级和弦,你们大声地把这一段唱给我听，这个是主音，预备，唱。

耶鲁公开课 - 聆听音乐课程节选