The overall layout resembles a serenade and is in fact more or less the same as that of Mozart's string trio, K. 563 in the same key, but Beethoven expands the form by the addition of substantial introductions to the first and last movements and by changing the second minuet to a scherzo. The main theme of the third movement had already been used in Beethoven's Piano Sonata No. 20 (Op. 49 No. 2), which was an earlier work despite its higher opus number. The finale features a violin cadenza.