Piano Sonata no. 26 in E flat major, op. 81a, "Les Adieux"

Ludwig van Beethoven's Piano Sonata No. 26 in E♭ major, Op. 81a, known as Les Adieux ("The Farewell"), was written during the years 1809 and 1810. This sonata was influenced by Jan Ladislav Dussek's sonata with the same nickname.