She has met with great success in working with many international organizations, and in the training of therapists, educators, and doctors. Live music was used in hospitals after both World Wars as part of the treatment program for recovering soldiers. Clinical music therapy in Britain as it is understood today was pioneered in the 1960s and 1970s by French cellist Juliette Alvin whose influence on the current generation of British music therapy lecturers remains strong. Mary Priestley, one of Juliette Alvin's students, created "analytical music therapy". The Nordoff-Robbins approach to music therapy developed from the work of Paul Nordoff and Clive Robbins in the 1950/60s. Practitioners are registered with the Health Professions Council and, starting from 2007, new registrants must normally hold a master's degree in music therapy. There are master's level programs in music therapy in Manchester, Bristol, Cambridge, South Wales, Edinburgh and London, and there are therapists throughout the UK. The professional body in the UK is the British Association for Music Therapy In 2002, the World Congress of Music Therapy, coordinated and promoted by the World Federation of Music Therapy, was held in Oxford on the theme of Dialogue and Debate. In November 2006, Dr. Michael J. Crawford and his colleagues again found that music therapy helped the outcomes of schizophrenic patients. According to Evan Andrews, reporting on the History Channel, ancient flutes, carved from ivory and bone, were found by archaeologists, that were determined to be from as far back as 43,000 years ago. He also states that “The earliest fragment of musical notation is found on a 4,000-year-old Sumerian clay tablet, which includes instructions and tuning for a hymn honoring the ruler Lipit-Ishtar. But for the title of oldest extant song, most historians point to “Hurrian Hymn No. 6” https://www.youtube.com/watch?v=QpxN2VXPMLc an ode to the goddess Nikkal that was composed in cuneiform by the ancient Hurrian's sometime around the 14th century B.C.”. These historic artifacts suggest that perhaps music did play a part in mankind's advancement's. The find, of the oldest known melody, Hurrian Hymn No. 6, proves that humans were composing music as far back as 3,400 years ago and leads me to believe that there was, more than likely, some form of music much farther in the past than we know.