Auris Overtone Flute (FOT-049, FOT-059)Auris Overtone Flute F Tone. The overtone flute is an old Scandinavian instrument that has influenced the folk music in many places by its special sound and scale. You can also find this flute in other countries like Hungary. In order to make it easy for beginners, the flute should be played with a covered half tone hole so that just one hand movement is necessary. This is also the shape in which the flute is delivered. The overtone flute has only one