18/17

Interval information

Ratio	18/17
Subgroup monzo	2.3.17 [1 2 -1⟩
Size in cents	98.95459¢
Name	small septendecimal semitone
Color name	17u1, su semitone
FJS name	[math]\displaystyle{ \text{A1}_{17} }[/math]
Special properties	superparticular, reduced
Tenney height (log2 nd)	8.25739
Weil height (log2 max(n, d))	8.33985
Wilson height (sopfr(nd))	25
[sound info]
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In 17-limit just intonation, 18/17 is the small septendecimal semitone of about 99¢. It is very close to 12edo's "half step" of 100¢, and fairly close to the "large septendecimal semitone" of 17/16 (~105¢).

See

• 17/8 - its inversion
• Gallery of just intervals
• List of superparticular intervals