Anna-Maria Hefele – holding a master of arts (MA) from Mozarteum Salzburg – is a multiinstrumentalist, singer and overtone singer; performing worldwide as a soloist with different ensembles, choirs and orchestras. She is also frequently integrated into contemporary ballet, circus and dance theatre productions. In order to expand the musical repertoire involving overtone singing, Anna-Maria collaborates with contemporary composers who are writing for this particular vocal technique where it seems like one person is singing two notes at the same time by filtering and amplifying the natural harmonics in the human voice. Her YouTube video „polyphonic overtone singing“ became viral and has resulted in more than 15 million views so far, followed by regular appearances of Anna-Maria in various international television shows and radio broadcasts. „A voice as from another world“, „the lady with the two voices“, „polyphonic vocalist does the impossible“ – these and other headlines have spread across the world.
