The maker has been supplying them to music stores and playing them professionally for several years. This scale is more limited and is mostly used for improvisation and meditation. They are tuned accurately and can be played in groups with other instruments. It is said to be the tone of running water, wind in the trees, the Earth and the Universe. In India it is called Ma and is related to the Spiritual Sound Current, Nada or Word.
All flutes are of two different types.
To make a flute tone the player places their lower lip against the flute slightly below the embouchure hole and with their lips nearly together blows a steady stream of air across the embouchure hole. With practice it is easy to make a beautiful tone. The spirit flute, on the other hand, is played like a recorder, penny whistle, or American Indian flute. Since the embouchure is set by the maker, by simply blowing into the end of the flute a flute tone is produced. The spirit flute is easier to play for the inexperienced player, but it does have some limitations.