The Secret Lore of Music: The Hidden Power of Orpheus;

Hermeticist Fabre d'Olivet's classic study of music as sacred art and its profound effects on the soul.
Ever since Pythagoras demonstrated the mathematical basis of music and its profound effect on the soul, the Western esoteric tradition has been deeply involved with the science and art of tone. Fabre d'Olivet (1767-1825) was the first to restate Pythagoras' ideas in modern terms, and to show the way for music to regain its spiritual heritage. He calls for a complete reevaluation of its nature and purpose. Fearless in his criticism of the trivialization of music in his own time, d'Olivet recalls its ancient glory in China, Egypt, and Greece. He shows that music is rooted in the same principles as the universe itself, and that it is intimately connected with the destiny of mankind.

New edition of Music Explained as Science and Art.

A man of astonishing insights and strange revelations, Fabre d'Olivet is increasingly recognized as an essential link in the golden chain of Western theosophy, and as a prophetic figure with a message for our own age.