Grove Concise Dictionary of Music entry at WQXR radio. Includes life, influences, major works, and popularity.

Gilder-MusicWeb Dictionary of composers entry with summary of life history and compositional output.

Copies of compositions at 8notes.com in Sibelius, MIDI, and PDF formats, including degree of difficulty and links to purchase other materials.

Karadar dictionary entry with life, related composers, and list of operas.

Brief biographical sketch, caricature, comments on his operas, and Naxos discography.