Web Directory

» (Un)official Countertenor Homepage, The
   Directory of mini biographies of countertenors. Other music links.
   http://www.medieval.org/emfaq/performers/countertenors.html

» Historical Tenors
   Discographies, repertoires, and short biographies of many tenors.
   http://www.francoisnouvion.net/

» History of the Tenor Voice
   Paper from the first international conference on Physiology and Acoustics of Singing (PAS), held in the Netherlands in 2002.
   http://www.med.rug.nl/pas/Conf_contrib/Reinders/Reinders_the_way_tenor.htm

» Special Considerations in the Training of the Bass Singer
   Page from VoiceTeacher.com defines differences between basso profundo, basso cantablie (or lyrical bass), and bass-baritone.
   http://www.voiceteacher.com/bass_voice.html

» Urban Dictionary: Contralto
   Offers several informal definitions contributed by submitters.
   http://www.urbandictionary.com/define.php?term=contralto

» Voice Definitions and Ranges
   Explains how the names of polyphonic parts were adapted to identify voice types, with emphasis on the tenor and countertenor.
   http://www.medieval.org/emfaq/misc/voices.html

» Wikipedia: Baritone
   Defines the singing range as lower than tenor but higher than bass, with subclassifications including lyric, bel canto and dramatic.
   http://en.wikipedia.org/wiki/Baritone

» Wikipedia: Soprano
   Lengthy article describes vocal quality and typical range for subtypes from coloratura to dramatic, with a list of soprano roles in the operatic and musical theater repertoire.
   http://en.wikipedia.org/wiki/Soprano