http://www.marstonrecords.com/hackett/hackett_tracks.htm Hackett, Charles American tenor. An appreciation, recording from Marston Records. http://www.tenor.dk/ Hansen, Ole The Danish tenor who wants to challenge Carreras, Domingo and Pavarotti to song-duels. http://www.markella.com/ Hatziano, Markella Greek mezzo soprano having appeared with most major orchestras and opera companies in the world. http://www.geocities.com/Vienna/Stage/4715/hautescontre.html Haute-Contre, The Three Mainly about counter tenors Padmore, Agnew, Fouchecourt and del Pozo, plus some collateral links and information. http://www.catherinehayes.com/ Hayes, Catherine Irish soprano. Biography of the 19th century singer. http://home.t-online.de/home/hendricks-club/ Hendricks, Barbara American soprano. Biography, discography, schedule, media appearances. Home page of the Barbara Hendricks International Club. http://www.hyperion-records.co.uk/artist_page.asp?name=herford Herford, Henry Scottish baritone. Biography, Hyperion discography. http://www.hyperion-records.co.uk/artist_page.asp?name=mhill Hill, Martyn English tenor. Biography, RealAudio samples, Hyperion discography. http://www.tajimajapan.gn.to/davidindex.htm Hobson, David Australian tenor. Sound clips, photos and reviews. http://www.gopera.com/winterreise/reviews/holl_19990117.html Holl, Robert Dutch bass baritone. Reviews of a performance of Winterreise, 17.1.99. http://www.hyperion-records.co.uk/artist_page.asp?name=howell Howell, Gwynne Welsh bass. Biography, Hyperion discography. http://virtual.finland.fi/finfo/english/hynninen.html Hynninen, Jorma Finnish baritone. Biography, select discography.