Busoni Manuscripts: Descriptions of several letters and sketches in the Indiana University library.
Busoni's Bach Transcriptions: Article on the piano transcription of Bach's organ works. From Youngrok Lee's Music Page.
Busoni, Ferruccio Dante Michelangiolo Benvenuto: Musical biography noting background, parentage, education, noted compositions, work as conductor, and examining the various conflicts in his mind that normed his later works. From the Grove Concise Dictionary of Music entry at WQXR radio.
Classic Cat: Busoni: Directory of mp3s on the internet that have been made available by their performing artists.
Classical Music Archives: Busoni: Audio files offered in MIDI format.
Ferruccio Busoni: Classica Musica Classical Music Dictionary entry with brief biography, operas and other works, including the libretto to Turandot, illustrations, and MIDI audio files.
Ferruccio Busoni (1866 - 1924): Brief biography and portrait with summary of his piano music and Naxos discography.
Ferruccio Busoni (1886-1924): Miscellaneous lieder in opus order from recmusic.org, most with original texts, some have English translations.
Ferruccio Busoni Discography: Extensive catalog of works, color coded by type, with available recordings.
Ferruccio Busoni's MIDI Files: List of fugues and related pieces, many with audio from Kunst der Fuge.
Inkpot Classical Music Reviews: Busoni the Visionary: Overview and review of several recordings.
Sequenza21: A Pianist's Notes on Busoni the Visionary: Liner notes for a new recording.