28/25
Jump to navigation
Jump to search
Ratio
28/25
Factorization
22 × 5-2 × 7
Monzo
[2 0 -2 1⟩
Size in cents
196.1985¢
Names
(septimal) middle major second,
(septimal) middle whole tone
Color name
zgg3, zogugu 3rd
FJS name
[math]\text{d3}^{7}_{5,5}[/math]
Special properties
reduced
Tenney height (log2 nd)
9.45121
Weil height (log2 max(n, d))
9.61471
Wilson height (sopfr(nd))
21
Harmonic entropy
(Shannon, [math]\sqrt{nd}[/math])
~4.20212 bits
[sound info]
open this interval in xen-calc
Interval information |
(septimal) middle whole tone
(Shannon, [math]\sqrt{nd}[/math])
[sound info]
28/25, the (septimal) middle whole tone, is the interval between 5/4 and 7/5, and is intermediate in size between 10/9, of which it is 126/125 sharp, and 9/8, of which it is 225/224 flat. It's actually the mediant of 19/17 and 9/8. A meantone where the tone is tuned to be exactly 28/25 has a fifth of size 2√14/5, or 698.099 ¢.
See also
- 25/14 – its octave complement
- 25/21 – its fourth complement
- 29/26 – a co-mediant interval
- Gallery of just intervals
- 25-odd-limit