The Piano Sonata No. 28 in A major, Op. 101, by Ludwig van Beethoven was composed in 1816 and published in 1817. Dedicated to the pianist Baroness Dorothea Ertmann, née Graumen, it is considered the first of the composer's late piano sonatas.
Opening of Beethoven's Piano Sonata No. 28 in A major, Op. 101
Beethoven's manuscript sketch for movement IV
Ludwig van Beethoven's Piano Sonata No. 27 in E minor, Op. 90 was written in the summer of 1814 – Beethoven's late Middle period – and dedicated to Prince Moritz von Lichnowsky, a friend and benefactor who was also the dedicatee of the Eroica Variations.
Opening bars as they appear in Beethoven's completed manuscript.