25/18: Difference between revisions

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'''25/18''', the classic ([[5-limit]]) augmented fourth, is 325/324 (5.3 cents) sharp of [[18/13]], and is the interval between [[6/5]] and [[5/3]] or [[9/5]] and [[5/2]] respectively.  
'''25/18''', the '''classic augmented fourth''', is a [[5-limit]] tritone that is 325/324 (5.3 cents) sharp of [[18/13]], and is the interval between [[6/5]] and [[5/3]] or [[9/5]] and [[5/2]] respectively.  


== See also ==
== See also ==

Revision as of 17:58, 18 November 2021

Interval information
Ratio 25/18
Factorization 2-1 × 3-2 × 52
Monzo [-1 -2 2
Size in cents 568.7174¢
Names classic augmented fourth,
pental augmented fourth
Color name yy4, yoyo 4th
FJS name [math]\displaystyle{ \text{A4}^{25} }[/math]
Special properties reduced
Tenney norm (log2 nd) 8.81378
Weil norm (log2 max(n, d)) 9.28771
Wilson norm (sopfr(nd)) 18

[sound info]
Open this interval in xen-calc

25/18, the classic augmented fourth, is a 5-limit tritone that is 325/324 (5.3 cents) sharp of 18/13, and is the interval between 6/5 and 5/3 or 9/5 and 5/2 respectively.

See also