The Busoni concerto, with its five movements, choral finale and a length of over 70 minutes, is surely the most grandiose ever written. But this is no over-ambitious monster; Busoni was one of the greatest pianists the world has known, but he was also a great intellectual with very strong views on art and culture. This work is the masterpiece of his middle years, more of a symphony in the breadth and scope of its ideas, but at the same time almost casually requiring the most formidable technical ability from the soloist. There is no doubt that this is one of music's major neglected masterpieces.