Decimal

Decimal is a temperament in both the dicot and semaphore families of temperaments. It is also hemipyth, meaning that it has approximations of √2, √3, and √(3/2). It is special in that it is also an exotemperament.

Interval chain

In the following table, odd harmonics and subharmonics 1–7 are labeled in bold.

#	Period 0	Period 1
	Approx. Ratios	Approx. Ratios
-2	3/2	21/20, 15/14
-1	12/7, 7/4	6/5, 5/4
0	1/1	7/5, 10/7
1	8/7, 7/6	8/5, 5/3
2	4/3	28/15, 40/21

One can see that the 10-note mos of the decimal temperament contains the 7-odd-limit tonality diamond.