Medium Low Voice. Edited by Patrick M. Liebergen. This edition: Book and Accompaniment CD. Series; Vocal Collection. For Solo Singers. Play along. Book; CD. 64 pages. Alfred Music #00-19903. Published by Alfred Music

Medium High Voice. Edited by Patrick M. Liebergen. This edition: Book and Accompaniment CD. Series; Vocal Collection. For Solo Singers. Play along. Book; CD. 64 pages. Alfred Music #00-19900. Published by Alfred Music

A Guide to Aspiring Singers. By Mary King, Anthony Legge. For singers. Instructional Handbook. Published by Faber Music Ltd.