A Swedish born composer, who studied in the tradition of the Xenakis and Stockhausen in the 1960s, Hennix met La Monte Young and Hindustani raga master Pandit Pran Nath at the Nuits du Fondation Maeght festival in 1970, and pursued studies with both men during the 1970s. Hennix learned of La Monte Young in 1969, and immediately became her pupil. For much of La Monte Young's compositions, the young Hennix introduced a robust mathematical basis. In 1970, she was also pupil of the northern Indian Kirana meesterzanger Pandit Pran Nath, meetings which would exert a great influence on her musical style. Hennix also drew inspiration from the Japanese Gagaku music and early vocal, thirteenth-century music of Perotinus and Leoninus. In addition Hennix frequently worked together with the American composer / violinist Henry Flynt. Together with Flynt has Hennix a number dronewerken for violin and tamboura.