26/17

26/17 |1 0 0 0 0 1 -1>

735.5723 cents

File:Jid 26 17 pluck adu dr220.mp3 sound sample

In 17-limit Just Intonation, 26/17 is the "septendecimal super-fifth," measuring about 735.6¢. It differs from a 3/2 perfect fifth by the comma 52/51, about 33.6¢. Although this difference is considerable, 26/17 may be used as a wide perfect fifth, thus allowing septendecimal versions of root-3rd-P5 chords -- in particular, 17:20:26, 17:21:26, 17:22:26.

26/17 is the mediant between 3/2 and 23/15. Its inversion is 17/13, the "septendecimal sub-fourth".

See: Gallery of Just Intervals