~ International Phonetic Alphabet for Singers by Joan Wall
   (A manual for English and foreign language diction)
~ Diction for Singers by Joan Wall, Robert Caldwell,
   Tracy Gavilanes, Sheila Allen
~ Music for Sight Singing by Robert W. Ottman
~ Sight Singing Pitch-Interval-Rhythm by Samuel Adler
~ Ear Training A Technique for Listening by Bruce Benward and
   J. Timothy Kolosick
~ The First Book Of Soprano Solos by Joan Frey Boytim
~ The First Book Of Soprano Solos 2 Accompaniment CDs
~ The First Book Of Soprano Solos - Part II by Joan Frey Boytim
~ The First Book Of Soprano Solos 2 Accompaniment CDs
~ The Second Book Of Soprano Solos by Joan Frey Boytim
~ The Second Book Of Soprano Solos 2 Accompaniment CDs
~ The First Book Of Mezzo-Soprano/Alto Solos
    by Joan Frey Boytim
~ The First Book Of Mezzo-Soprano/Alto Solos
    2 Accompaniment CDs
~ The First Book Of Mezzo-Soprano/Alto Solos - Part II
    by Joan Frey Boytim
~ The First Book Of Mezzo-Soprano/Alto Solos - Part II
    2 Accompaniment CDs
~ The Second Book Of Mezzo-Soprano/Alto Solos
    by Joan Frey Boytim
~ The Second Book Of Mezzo-Soprano/Alto Solos
    2 Accompaniment CDs
~ The First Book Of Tenor Solos by Joan Frey Boytim
~ The First Book Of Tenor Solos 2 Accompaniment CDs
~ The First Book Of Tenor Solos - Part II by Joan Frey Boytim
~ The First Book Of Tenor Solos - Part II 2 Accompaniment CDs
~ The Second Book Of Tenor Solos by Joan Frey Boytim
~ The Second Book Of Tenor Solos 2 Accompaniment CDs
~ The First Book Of Baritone/Bass Solos by Joan Frey Boytim
~ The First Book Of Baritone/Bass Solos 2 Accompaniment CDs
~ The First Book Of Baritone/Bass Solos - Part II
    by Joan Frey Boytim
~ The First Book Of Baritone/Bass Solos - Part II
    2 Accompaniment CDs
~ The Second Book Of Baritone/Bass Solos by Joan Frey Boytim
~ The Second Book Of Baritone/Bass Solos
    2 Accompaniment CDs
~ 15 American Art Songs Compiled by Gary Arvin
~15 American Art Songs Accompaniment Cassette Tape
~ Handel Messiah (The New Novello Choral Edition)
   by Georg Frederic Handel
~ Handel's Messiah CD Of The Oratorio Society Of New York
~ 26 Italian Songs and Arias Edited by John Glenn Paton
   (comes in "Medium High" range and "Medium Low" range)
~ 26 Italian Songs and Arias Accompaniment CD
~ Hymn Classics by Richard Walters
   (comes in "High Voice" range and "Low Voice" range)
~ Hymn Classics Accompaniment CD