51/40

Interval information

Ratio	51/40
Monzo	[-8 1 -1 0 0 0 1⟩
Size in cents	420.59670
Name(s)	septendecimal major third
Color name	17og4, sogu 4th
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In 17-limit just intonation, 51/40 is the septendecimal major third. Although technically a type of supermajor third, there's already a septendecimal supermajor third in the form of 22/17, while 51/40 itself is the fifth complement of 20/17- the septendecimal minor third.

It is approximated by:

• 7\20 (420 cents)
• 1\3 (4\12) (400 cents)
• 6\17 (12\34) (423.529 cents)

See also

• 80/51 – its octave complement
• 20/17 – its fifth complement
• Gallery of just intervals