Music for peyote ritual of the Native American Church (which is a pan-tribal religion) involves intense singing with a continuous rapid beat on a water drum with rattle accompaniment.  Newer recordings have harmonized vocal tracks for a rich, choral sound.  A new style of Native American music was grown from the songs for the peyote ritual.  Healing songs are derived from peyote songs, but are performed without drum and rattle and at a slower tempo.  The songs are performed as soothingly as possible.  Overdubbing of multiple harmonies creates a soothing sound to enhance meditation and relaxation.