With overtone flute the notes of an overton scale are played, e.g., C, C1, G1, C2, E2, G2, Bb2, C3,D3, E3, F#3, G3 (see table below).

The choice of a note happens by the strength of the air pressure when the flute is blown and with a grasping hole. Ever stronger it is blown all the higher the tone.

With closed grasping hole the uneven-numbered partial sounds are played, with open grasping hole the even-numbered.

The first partial note is the tonic (according to the chosen Space Flute). Of the 2^nd partial tone an octave forms to the tonic. The interval from 2^nd to the 3^rd partial tone is a Fifth etc.

The nature sounds deviate from the taken down sounds(clay) (same-stage, chromatic mood) now and then clearly: the fifth (C - G) is bigger a little, the big third (C1'-E1) and particularly the small Septime (C1-Bb1) are much smaller. The 7th partial tone forms the so-called Natural Seventh which is completely disregarded in the western marking system and is replaced by the Minor seventh.