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.
Peter Ryom Peter Ryom (born May 31, 1937 in Copenhagen) is a Danish musicologist. He is internationally known as the author of the Ryom-Verzeichnis, the now-standard catalog of the works of Antonio Vivaldi. The number of a composition in the Ryom Verzeichnis (Ryom catalog) is always prefaced by the abbreviation RV. (The V in RV stands for Verzeichnis, not Vivaldi.)