The word is usually used to mean the difference between three justly tuned major thirds (tuned in the frequency ratio 5:4) and an octave (in the ratio 2:1), equal to 128:125 or about 41.06 cents.
The word diesis has also been used to describe a large number of intervals, of varying sizes, but typically around 50 cents. Philolaus used it to describe the interval now usually called a limma, that of a justly tuned perfect fourth (4:3) minus two whole tones (9:8), equal to 256:243, or around 90 cents. Other theorists have used it for various other intervals.
Diesis, an English champion and prominent Kentucky stallion, was euthanized Nov. 18 at Mill Ridge Farm, owned by Alice Chandler and her husband, Dr. John Chandler, near Lexington.
Diesis won the 1982 William Hill Dewhurst (Eng-I) and William Hill Middle Park (Eng-I) Stakes as a 2-year-old his championship season for breeder/owner Lord Howard de Walden.
Diesis, who was produced from the Reliance mare Doubly Sure, covered six mares this year, four of which are in foal.
The word is usually used to mean the difference between three justly tuned major thirds (tuned in the frequency ratio 5:4) and an octave (in the ratio 2:1), equal to 128:125 or about 41.06 cents.
The word diesis has also been used to describe a large number of intervals, of varying sizes, but typically around 50 cents.
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