terzetto

The choir closed the concert with a beautiful terzetto by a local composer.

用法提示：terzetto 是名词，指三个声部演唱的作品，在句中作宾语。

We spent the afternoon rehearsing the terzetto until the three parts blended perfectly.

用法提示：terzetto 表示一首三重唱作品，这里特指正在排练的那首。

The publisher has issued two terzettos for soprano, tenor, and bass.

用法提示：terzettos 是 terzetto 的复数形式，指多首三重唱作品。