汤姆用传统的弦乐器来演奏。

Tom plays a traditional string instrument.

youdao

每一个专家都有一个关于蒙眼测试的故事。在蒙眼测试中，参加测试者不见乐器只闻其声，靠听力辨别哪是用斯特拉·瓦迪演奏，哪是用现代小提琴演奏。

Every expert has a story about a "blind" test in which several instruments are played out of sight and the listeners have to guess which is the Strad and which the modern pretender.

youdao

弦乐器的演奏者练习的则是在左手的手指上下滑动的同时，用右手前后拉动琴弓——两个截然不同的动作。

String players practice moving the fingers of the left hand up and down, while drawing the bow to and fro with the right arm-two entirely different movements.

youdao

And the first question I think that you have on the quiz here is the following: what keyboard instrument is playing here?

这里有个小测验,第一个问题是,这段音乐是用什么键盘乐器演奏的

耶鲁公开课 - 聆听音乐课程节选

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