10 Duets for Recitals, Concerts, and Contests. Arranged by Patrick M. Liebergen, Earlene Rentz, Russell Robinson, and Ruth Elaine Schram. Book; CD; Duet or Duo; Masterworks; Vocal Collection. For Two Series. Masterwork Arrangement; Sacred; Secular. 64 pages. Published by Alfred Music

For Soprano and Baritone. By Pal Varga. Arranged by Peter Varga. EMB. Size 8x11.25 inches. 89 pages. Published by Editio Musica Budapest.

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

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

Arranged by Leonard Van Camp. Laudamus Press. Size 9x12 inches. 88 pages. Published by Laudamus Press.