After identifying a specific allergen, Legge method uses music in a specific prescriptive manner. Listening to one of the 360 available musical pieces with headphones begins a vibratory shift that changes energetic blockages in the body. A friend no longer gets headaches from the flowering shrubs in her yard. A 5 year old can visit her grandparents without feeling sick from her reaction to their goats. After the first hour session, treatments are 1/2 hour. Only one allergen can be treated at a session.