We were excited to film with Jill and her husband Rupert Sheldrake a the 2015 Synchronicity Symposium. Jill Purce (born 1947) is a British voice teacher, Family Constellations therapist, and author. Purce developed in the 1970s a new way of working with the voice, introducing the teaching worldwide of group overtone chanting, producing a single note whilst amplifying the vocal harmonics.[1][2][3][4][5] She is a former fellow of King's College London, Biophysics Department.[6] She produced over 30 books as General Editor of the Thames and Hudson Art and Imagination series.[7] Between 1971 and 1974 she worked in Germany with the composer Karlheinz Stockhausen. Since the early 1970s she has taught internationally diverse forms of contemplative chant, and especially overtone chanting.