There are two other families that have now become functionally obsolete for practical purposes, though instruments of both types are sometimes used for period-instrument performances of Baroque- or Classical-era pieces.

• 有现在变得功能上过时为实用目的其他二个家庭,虽然两个类型的仪器有时使用为期间仪器表现巴落克式样或古典时代片断。