| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Classics for Two: 12 Masterwork Duets from the Renaissance through the Romantic Era, Book & CD | 978-0-7390-4390-5 | 2007 | |
| Favorite Wedding Classics for Solo Singers: Medium High Voice, Book & CD | 978-0-7390-1571-1 | 2001 | |
| Favorite Wedding Classics for Solo Singers: Medium Low Voice | 978-0-7390-1572-8 | 2001 | |
| Masterworks for Two: 10 Duets for Recitals, Concerts, and Contests | 978-1-4706-3785-9 | 2017 | Earlene Rentz · Russell Robinson · Ruth Elaine Schram |
| Masterworks for Two: 10 Duets for Recitals, Concerts, and Contests, Book & CD | 978-1-4706-3784-2 | 2017 | Earlene Rentz · Russell Robinson · Ruth Elaine Schram |
| Spirituals for Young Voices | 978-1-4803-4263-7 | 2013 | |
| With Joyful Singing: A Collection of Introits, Responses, and Benedictions from the Medieval, Renaissance, Baroque, Classical, and Romantic Periods , Choral Book & CD | 978-1-4706-2044-8 | 2014 | |
M.-L. · P.M. · Patrick L. · Patrick Liebergen · Patrick M.