Polychromatic system
- Not to be confused with Kite's color notation.
The polychromatic system is a musical notation system devised by Dolores Catherino for notating large edos, such as 72edo and 106edo. It expands on circle-of-fifths notation by using colored noteheads that indicate pitch-color. Additional inflections may be notated using arrows, similar to those of Kite's ups and downs notation.
Pitch-color is determined by a sequence of hues: (flatter) red, orange, yellow, green, blue, violet, pink (sharper). Yellow is generally treated as the "middle" color, e.g. for the reference pitch.
Catherino uses the following color schemes:
- 24edo: 72edo subset (yellow and violet);
- 36edo: 72edo subset (red, yellow and blue);
- 53edo: (violet), orange, yellow, green, blue, (violet, pink)
- 72edo: red, orange, yellow, green, blue, violet;
- 106edo: 53edo superset with up/down arrows
External links
- Catherino, Dolores. Understanding the Polychromatic System. New Music USA.