Where the derivative instruments embedded in similar mixed instruments shall obviously not be separated from the relevant mixed instruments.

类似混合工具所嵌入的衍生工具，明显不应当从相关混合工具中分拆。

youdao

Pirekua can be sung solo, in duets or trios, or accompanied by choral groups, string orchestras and mixed orchestras (with wind instruments).

UNESCO: Culture

During the Renaissance, musicians played the trombone in town bands, royal ceremonial bands, and in mixed ensembles with string and keyboard instruments and voices.

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