Edited by Patrick M. Liebergen. For Voice. Vocal Collection. For Two Series. Masterwork; Sacred; Secular. Book. 100 pages. Published by Alfred Publishing.

Duets Book/2 CDs Pack. Vocal Collection. Songbook and CD accompaniments also available separately (HL.361075 and HL.740239). BOOK W/CD. 168 pages. Published by Hal Leonard.

Duets Edition. Composed by Various. Vocal Collection. Play Along. Softcover Audio Online. 176 pages. Published by Hal Leonard

Edited by Patrick M. Liebergen. For Voice. Vocal Collection. For Two Series. Masterwork; Sacred; Secular. Book and CD. 96 pages. Published by Alfred Publishing.

(8 Contemporary Duets on Popular Holiday Songs). Edited by Andy Beck. For Voice. Book; CD; Duet or Duo; Vocal Collection. For Two Series. Christmas; Secular; Winter. 72 pages. Published by Alfred Music

(The Career Guide to Becoming a Professional Singer). By Jaime Babbitt. For Voice. Book; Method/Instruction; Technique Musicianship; Vocal Method. 264 pages. Published by Alfred Music Publishing

By Paolo Fonghetti. For 2 Voices. Published by Ut Orpheus.

(Opera Duets - 19th Century French Opera). By Various. Vocal Duet. For Soprano Voice and Baritone Voice. Opera. Collection

Edited by Andy Beck And Brian Fisher. For Voice. Vocal Collection. For Two Series. Play along. Book & CD. 88 pages. Published by Alfred Publishing.