Didymus' Diatonic

SCL Detail

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

Diatonic - Didymus

File comments

Ancient Greek Tuning System Author: Didymus Period: Ancient Greece (c. 1st century BCE) Genus: Diatonic Reference: Table 16, murray_text_02_greek.md Contains the same intervals as Ptolemy's Syntonic Diatonic (just intonation) but with minor tone (10/9) below major tone (9/8) - more logical for monochord construction. 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	16/15	ratio	16/15	112.00
3	10/9	ratio	10/9	294.00
4	9/8	ratio	9/8	498.00
5	9/8	ratio	9/8	702.00
6	16/15	ratio	16/15	814.00
7	10/9	ratio	10/9	996.00
8	9/8	ratio	9/8	1200.00
8		2nd octave		1312.00
9		2nd octave		1494.00
10		2nd octave		1698.00
11		2nd octave		1902.00
12		2nd octave		2014.00
13		2nd octave		2196.00
14		2nd octave		2400.00