Biographical and musicological information, links, and directory of MP3 audio files from Classic Cat.

Wikipedia article with biography, including special emphasis on the Variations and internal references to related people and topics.

Entry at the Lied and Art Songs Text Page with list of vocal works linked to lyrics.

Find A Grave biographical sketch with portrait and photographs of his tombstone plus interactive memorial.

Music files offered in MIDI format.

Biography noting his lasting legacy of the variations various composers wrote upon a theme and his impact as a music publisher from the Grove Concise Dictionary of Music entry at WQXR radio.

Biographical data, recommended CDs, books and sheet music, bibliography, and links to biographical essays.