1 x Andrew Lloyd Webber Vocal Duets

1 x Broadway Duets

1 x American Folk Songs for Two: 10 American Folk Songs Arranged for Two V

1 x 15 Easy Folksong Arrangements: Low Voice Introduction by Joan Frey Boy

1 x 24 Vocalizzi Progressivi, Op. 85 (Vocal Method)

1 x 12 Sacred Vocal Solos for Classical Singers: Low Voice Edition With a

1 x 14 Sacred Solos: The Vocal Library Low Voice

1 x Classics for Two: 10 Masterwork Duets from the Renaissance through the

1 x 24 Progressive Vocalises, Op. 85 - Book 1: Schirmer Library of Classic

1 x 25 Lessons, Op. 10: Schirmer Library of Classics Volume 244 Medium Voi

1 x 12 Sacred Vocal Solos for Classical Singers: High Voice Edition With a

1 x 14 Sacred Solos: The Vocal Library High Voice