Theodor W. Adorno's long-awaited but never finished Beethoven: The Philosophy of Music was published in Germany only in 1993, nearly a quarter of a century after the author's death in 1969. These important and illuminating notes and texts - which remain in fragmented form - were described by Adorno as a "diary of his experiences of Beethoven". The editor of this volume, Rolf Tiedemann, has organized the segments in such a way as to bring out their inherent logic and relatedness. He has added copious explanatory notes and an appendix which serve as an invaluable elaboration of Adorno's frequently cryptic aphorisms.