Diaschisma
The diaschisma (or diacisma) is a small
Helmholtz; earlier Rameau
had called that interval a "diminished comma" or comma minor.
A diaschisma is the difference between a
Pythagorean minor second
, or 256/243, which would make the other half either 25/24 (70.67 cents) or about 45 cents. The diaschisma may be approximated by 89/88, 19.56 cents.
46
notes all temper it out.
See also
References
- ISBN 0-8247-4714-3. Diaschisma.
- ^ "Diaschisma", Merriam-Webster.com.
- ^ (1897). Columbian cyclopedia, Volume 9, np. Garretson, Cox & Company. pre-ISBN.