Mozart had promised to deliver three piano quartets to the Viennese publisher Hoffmeister. Yet, as G.N. Nissen–Constanze Mozart’s second husband–reported in his biography of the composer, the first quartet, in G minor, did not sell well because it was found to be too difficult. So Hoffmeister canceled his contract with Mozart, who then gave his second effort, the present work, to the competition, Artaria. Unfortunately, he never got around to composing the third piece in the projected set.
The combination of piano and string trio, cultivated later by such Romantic masters as Schumann, Brahms, Dvořák and Fauré, was probably Mozart’s invention. He added a viola to the more usual piano-trio format, just as he added a second viola to the string quartet to create string quintets–thereby enriching the sound and indulging his love for a beautiful but neglected string instrument that he himself loved to play.
Unlike the G minor quartet which–at least in its first movement–strikes a dark and dramatic tone, the present work has a cheerful disposition from beginning to end. The piano–Mozart’s primary instrument–is clearly the leader throughout, but the three strings, as a group, make a highly effective counterweight.
The second theme of the first movement breaks up this balance when it opposes the individual voices of the violin and the viola to that of the piano. The cello holds on to its accompanying role, except in the development section, where it becomes more “emancipated” and shares in the contrapuntal elaboration of the second theme. Then, for most of the recapitulation, it resumes its principal function as a provider of harmonic support.
While the second-movement Larghetto is an intimate conversation between the piano and the string trio (treated here as a close-knit group throughout), the Rondo finale comes close to being a keyboard concerto: the rapid passagework of the piano dominates the texture almost entirely. It is a playful and lighthearted movement; even the central minor-mode episode emphasizes virtuosity over drama.
© 2026 Peter Laki