Sesquiquintum
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Sesquiquintum (Latin neuter) (masculine: sesquiquintus) refers to the improper vulgar fraction
- <math> {6 \over 5} = 1 + {1 \over 5}. <math>
It is a superparticular number.
The sesquiquintum in musical harmony is the ratio corresponding to the interval semiditonus.
See also: sesquialterum, sesquitertium, sesquiquartum.
External link
- Nova musica, liber tertius de proportionibus (http://www.music.indiana.edu/tml/15th/CICNM3_TEXT.html) by Johannes Ciconia.
- Sescuplum ad quincuplum sesquiquintum. Six is to five as a sesquiquintum.