Ernő Lendvai (February 6, 1925 – January 31, 1993) was one of the first music theorists to write on the appearance of the golden section and Fibonacci series and how these are implemented in Bartók's music, he also formulated the axis system, acoustic scale and alpha chord, an octatonic scale is any which number note musical scale?
Octatonic scale An octatonic scale is any eight-note musical scale. The scale most often meant by this term is one in which the notes ascend in alternating intervals of a whole step and a half step, creating a symmetric scale. In classical theory, in contradistinction to jazz theory, this scale is commonly simply called the octatonic scale (or octatonic collection), although there are forty-two other non-enharmonically equivalent, non-transpositionally equivalent eight-tone sets possible.
Flamenco mode In music theory, the flamenco mode (also Major-Phrygian) is a harmonized mode or scale abstracted from its use in flamenco music. In other words the collection of pitches in ascending order accompanied by chords represents the pitches and chords used together in flamenco songs and pieces. The key signature is the same as that of the Phrygian mode, with the raised third and seventh being written in as necessary with accidentals. Its modal/tonal characteristics are prominent in the Andalusian cadence.