Vocal Wisdom: Maxims Of Giovanni Battista Lamperti - Hardcoverby William Earl Brown (Author) Vocal Wisdom: Maxims Of Giovanni Battista Lamperti is a book written by William Earl Brown that provides a comprehensive guide to the vocal techniques and teachings of the renowned Italian singing master, Giovanni Battista Lamperti. The book is a collection of Lamperti's teachings, which have been passed down through generations of singers and teachers, and are considered to be some of the most important and influential