开始用低音乐器演奏低音，然后转向更高的，最后回归到低音。

It starts with low instruments and then moves to higher ones, and then back to low ones.

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举例来说，一个站在舞台后部的左边，而且也唱的低音乐器演奏者。

For example, a bassist who stands upstage left and sings as well.

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我们现在需要很多好老师，只要有五六个能够熟练地演奏低音乐器的就行了。

We need more good teachers-right now, there are only a half a dozen who can play the free bass with ease.

youdao

It starts with low instruments and then moves to higher ones, and then back to low ones.

开始用低音乐器演奏低音,然后转向更高的,最后回归到低音

耶鲁公开课 - 聆听音乐课程节选

Now the instrument is--that is--playing is a low tuba, a low brass instrument.

现在在演奏的乐器,是低音号,一种低音铜管乐器

耶鲁公开课 - 聆听音乐课程节选

And then finally we could add that--the idea that maybe with a lot of electronic basses and things like that that they play--they tend to play the bass just louder.

然后最后我们可以添加这个，一种很多电贝斯和其他同类乐器演奏的方式,倾向于将低音演奏得响亮一些。

耶鲁公开课 - 聆听音乐课程节选