Graham Breed's name for the small (s) step size (interval) in the blackjack scale of the miracle family of temperaments. It is also a basic interval in other miracle scales such as canasta and studloco.
The quomma has a small range of variation in size: its standard size is 2(2/72) = 331/3 cents, the low end of the range is 2(1/41) = ~29 11/41 cents, and the high end is 2(1/31) = ~3822/31 cents.
On Graham Breed's webpages, he generally abbreviates the quomma as "q".
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