UA School of Music: Sir Harrison Birtwistle Biography. http://www.music.ua.edu/etc/birtwistle.html

ClassicalPlus Composer: Harrison Birtwistle Biography. http://www.gmn.com/composers/composer.asp?id=276

The Ensemble Sospeso: Sir Harrison Birtwistle Biography, photograph, interview. http://www.sospeso.com/contents/composers_artists/birtwistle.html

Braunarts: Harrison Birtwistle Includes interview and a discussion of the opera "The Mask of Orpheus." http://www.braunarts.com/birtwistle/

The Ensemble Sospeso: Harrison Birtwistle Interview. http://www.sospeso.com/contents/articles/birtwistle_p1.html

Miscellaneous Songs by Bonds Texts from some of Bonds' songs. http://www.recmusic.org/lieder/b/bonds.html