# Roy Hart

roy hart, born Rubin Hartstein (30 October 1926 – 18 May 1975), was a South African actor and vocalist noted for his highly flexible voice and extensive vocal range that resulted from training in the extended vocal technique developed and taught by the German singing teacher Alfred Wolfsohn at the Alfred Wolfsohn Voice Research Centre in London between 1943 and 1962. == History == roy hart began learning Wolfsohn's extended vocal technique at the Voice Research Centre in 1947 where many of his fellow students acquired unusual vocal flexibility and expressiveness, some of them developing voices with a range in excess of five octaves. In 1959 roy hart, having been a long-standing attendant of the Alfred Wolfsohn Voice Research Centre, began teaching acting classes to actors and drama students at various venues across London.Following the death of Alfred Wolfsohn in 1962, roy hart formed a performing arts group comprising some who had studied at the Alfred Wolfsohn Voice Research Centre and others who had attended Hart's acting classes.