729/704: Difference between revisions
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| Name = Alpharabian infra-augmented prime, Alpharabian infra-apotomic quartertone, undecimal major diesis | | Name = Alpharabian infra-augmented prime, Alpharabian infra-apotomic quartertone, undecimal major diesis | ||
| Color name = L1u1, lalu 1sn, Lalu comma | | Color name = L1u1, lalu 1sn, Lalu comma | ||
| Comma = yes | |||
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Revision as of 07:16, 20 January 2024
| Interval information |
Alpharabian infra-apotomic quartertone,
undecimal major diesis
729/704, conventionally named the undecimal major diesis[1], is a medium comma measuring about 60.4 ¢. In Alpharabian tuning, it is called the Alpharabian infra-augmented prime or Alpharabian infra-apotomic quartertone.
It is a type of quartertone that differs from 33/32 by 243/242, and is itself the interval left over after subtracting 33/32 from 2187/2048. While many may be accustomed to thinking of 33/32 and 729/704 as "semiaugmented primes", this analysis is only completely accurate when 243/242 is tempered out. This interval differs from the simpler 28/27 by the symbiotic comma.