Sonate in a "Arpeggione"

The Sonata in A minor for Arpeggione and Piano, D. 821, was written by Franz Schubert in Vienna in November 1824. The sonata is the only substantial composition for the arpeggione (which was essentially a bowed guitar) which remains extant today. It belongs to the same period as the Death and the Maiden Quartet, when Schubert was suffering from the advanced stages of syphilis and lapsing into increasingly frequent episodes of depression. Today, the piece is heard almost exclusively in transcriptions for cello and piano or viola and piano that were arranged after the posthumous publication. - Wikipedia.