In late 1821 Beethoven began work on his final piano sonata op. 111 which has been considered a towering masterwork ever since its publication. Thomas Mann gave it a literary monument in his novel “Doctor Faustus” in whose musical-theoretical digressions the main motif of the “Arietta” is set to the syllables “Wiesengrund”, the middle name of Theodor W. Adorno.

Jonathan Del Mar has re-examined the convoluted source material, including the proof sheets and errata lists that accompanied its publication. Supplementing the meticulously edited text is a detailed Critical Commentary, an informative Introduction and valuable notes on performance practice