Sonatas No. 9 in E Major and No. 10 in G Major, Op. 14 - Piano

Beethoven only arranged one of his piano sonatas for a different instrumentation: an authentic arrangement of the Sonata Op. 14 no. 1 for string quartet still exists (it is published in an appendix in the edition of the String Quartets Op. 18, HN 139/9139). He undertook this arrangement to protect himself from those made by others. For this reason he went about it in a meticulous manner; adding, for instance, extremely detailed information regarding dynamics and articulation. The acclaimed pianist Murray Perahia, the co-editor for this edition of Beethoven's Sonatas, also takes this source into account for the revision and in addition provides his own fingerings.