Busoni, Ferruccio.  Edited by Rainer Weber.  Published by Breitkopf & Hartel, Wiesbaden, Germany.  Busoni composed cadenzas to nine of Mozart's piano concerti.  These cadenzas have received praise from Vladimir Horowitz and many others.  Published in three volumes, Volume 1 contains cadenzas to the Concerto No. 9, K. 271; No. 17, K. 453; and No. 19, K. 459.  Volume 2 contains: K. 466; and K. 467.  Volume 3 contains: K. 482; K. 488; K. 491; and K. 503.