Vocalises: 20 Daily Exercises
Vocalises -- 20 Daily Exercises (High Voice). Composed by B. Lutgen. Edited by Spicker. For Voice (High voice (Medium-High)). Masterworks; Vocal Method. Kalmus Edition. Masterwork. Book. 32 pages. Published by Kalmus Classic Edition (AP.K09165).
ISBN 0769259324. Masterwork.