Archytas' Chromatic

SCL Detail

Degrees: 7 • Period: 1200.00 cents • Source: Murray

Chromatic - Archytas

File comments

Ancient Greek Tuning System Author: Archytas Period: Ancient Greece (c. 428-347 BCE) Genus: Chromatic Reference: Table 4, murray_text_02_greek.md Chromatic genus with ratio 28/27 for the lowest interval, creating a minor third of 32/27 (comma larger than syntonic 6/5). Octave span: E to E Tetrachord structure: Two tetrachords with disjunctive tone B-A (9/8)

Playback

Select a tone, then click Begin. Use Arrow keys to step; Space stops. You can also use 1-0, qwertyuiop, asdfghjkl, zxcvbnm.

Overview (non-12°)

Degrees (now extended to 2 octaves)

#	Raw	Type	Ratio	Cents
2	28/27	ratio	28/27	63.00
3	243/224	ratio	243/224	204.00
4	32/27	ratio	32/27	498.00
5	9/8	ratio	9/8	702.00
6	28/27	ratio	28/27	765.00
7	243/224	ratio	243/224	906.00
8	32/27	ratio	32/27	1200.00
8		2nd octave		1263.00
9		2nd octave		1404.00
10		2nd octave		1698.00
11		2nd octave		1902.00
12		2nd octave		1965.00
13		2nd octave		2106.00
14		2nd octave		2400.00