String trio String trio A string trio is a group of three string instruments or a piece written for such a group. The term is generally used with reference to works of chamber music from the Classical period to the present. From at least the 19th century on, the term "string trio" with otherwise unspecified instrumentation normally refers to the combination violin, viola and cello (cf "string quartet", "piano trio" etc.). This is how the term is used by major catalogs, including IMSLP. The earliest string-trio form, found in the early Classical period, consisted of two violins and a cello, a grouping
String Quintet (Schubert) with Kurt Reher on second cello (a 1994 CD reissue of this performance was awarded a Gramophone Award). Among modern recordings, that featuring the Melos Quartet with Mstislav Rostropovich (1977) has been acclaimed, and is notable for the exceptionally slow tempo adopted for the Adagio. Rostropovich later recorded the quintet with the Emerson String Quartet (12/1990) on the occasion of the gala concert celebrating the 125th anniversary of the BASF AG, Ludwigshafen. A few recordings of the quintet performed on period instruments exist, including a 1990 recording on the Vivarte label with the following lineup: Vera Beths and Lisa Rautenberg,