Acoustic scale

In music, the acoustic scale, overtone scale,Lydian dominant scale, or Lydian ♭7 scale, is a seven-note synthetic scale which, starting on C, contains the notes: C, D, E, F♯, G, A and B♭. This differs from the major scale in having a raised fourth and lowered seventh scale degree. It is the fourth mode of the melodic minor ascending scale. The term "acoustic scale" is sometimes used to describe a particular mode of this seven note collection (e.g. the specific ordering C-D-E-F♯-G-A-B♭) and is sometimes used to describe the collection as a whole (e.g. including orderings such as E-F♯-G-A-B♭-C-D).

In traditional music, the overtone scale persists in the music of peoples of South Siberia, especially in Tyvan music. Overtone singing and the sound of the jew's harp (jaw harp, juice harp, khomuz) are rich of overtones naturally, but tunes performed on igil (bowed instrument distantly related to the violin) and plucked string instruments such as doshpuluur or chanzy also often follow the overtone scale, sometimes with pentatonic slices.