The Psychology of Singing-A Rational Method of Voice Culture Based on a Scientific Analysis of All Systems, Ancient and Modern is a classic voice culture/singing instruction guide by David C. Taylor. Throughout the entire vocal profession, among singers, teachers, and students alike, there is a general feeling of the insufficiency of present knowledge of the voice. The problem of the correct management of the vocal organs has not been finally and definitely solved. Voice Culture has not been reduced to an exact science.