I've loved the vast, improbable Piano Concerto by Busoni (1866-1924) for almost 40 years and while I recognize that it has any number of flaws and would likely make no other critic's Top 25 list, I suspect that some readers will respond to it, too. The Concerto (1904) lasts upward of 70 minutes, combines some noble melodies with others of unspeakable banality, provides a massive workout for the pianist and concludes with a movement for male chorus, set to a mystical text in praise of Allah and the "Eternal Power." Busoni was an intellectual -- unusual for a composer -- and if some of his music comes from the head rather than the heart, his best work is shot through with a curious and elevated mixture of questing and repose.