impureness

Updated: June 24, 2025

There is no voice, however strong it may be, which can endure this overstraining of the registers, and sooner or later the singer must experience the disastrous results of his or her fault hoarseness, fatigue, roughness, and impureness in singing, and last, but not least, premature wearing out of the vocal organs.

Frank E. Miller - The Voice: Its Production, Care and Preservation