String Quintet (Schubert) No. 3 in C major, K. 515 and Beethoven's String Quintet, Op. 29 in C major. According to Charles Rosen, the opening theme of Schubert's work emulates many characteristics of the Mozart quintet's opening theme, such as decorative turns, irregular phrase lengths, and rising staccato arpeggios (the latter appear only in Schubert's recapitulation). But whereas the string quintets of Mozart and Beethoven are composed for a string quartet augmented by a second viola, Schubert adopts a somewhat unconventional instrumentation, employing two cellos instead of two violas, creating richness in the lower register. Before Schubert, Luigi Boccherini had replaced the second
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,