Chris Villars talks with him about his relationship with Morton Feldman, especially at the University of York.

Biography noting studies, influences, style, and wide range of scholarly works from the Grove Concise Dictionary of Music entry at WQXR radio.

Entry in the Gilder-MusicWeb Dictionary of Composers with biographical sketch and list of works.

Filmography listing his acting credit in The Compleat Beatles including brief biography.

Wikipedia entry with biographical information, to related material and people, and links.

Listing at the Lied and Art Songs Text Page with lyrics to selected vocal works.

Brief biography, photograph, and articles by or about him published at Music & Vision Daily.