The Mysticism Of Sound
by Inayat Khan

The author believes that it is this sound and spirit the sources of all revelation to the spirits in the sky who teach the one and same Truth. This wonderful book throws enlightenment ideas on different aspects of the beauty of music, which is now also being used in metaphysical healing certain kinds of psychological disorders.

The Therapeutic Value of Music
by Manly P Hall

Look at how ancient spiritual cultures related sound and spirits to cure the ills from which they suffer and we do today. In this booklet you will also find how rhythm is used by yoga teacher to regulate his body, and how music is linked with several aspects of the ancient enlightenment philosophies.