composed by Mozart
Mozart composed two Duos for violin and viola, No.1 in G major, KV423, and No.2 in Bb major, KV424. The close friendship between Joseph Haydn (1732-1809) and Mozart is very famous. Mozart was very close to also Joseph’s younger brother, Michael Haydn (1737-1806). In 1783, Michael Haydn was ill and incapacitated to compose two Duos for violin and viola. He had finished four duos to order for the archbishop of Salzburg, however he the order was six. Mozart composed two inspired duos, KV423 and KV424, to save Michael Haydn.
Duo No.1 in G, KV 423
Number. 1 (KV423) consists of the following three movements, I. Allegro, II. Adagio, III. Rondeau: Allegro.
Duo No.2 in F, KV 424
Number. 2 (KV424) consists of the following three movements, I. Adagio – Allegro, II. Andante cantabile, III. Thema con variazioni: Andante grazioso.