Septimal Canright

Septimal Canright is a 7-limit just intonation scale used by David Canright in his piano canon for seven hands and mentioned by him (https://sites.google.com/site/davidrcanright/music-articles/on-piano-retuning in a 1985 article) from the Journal of the Just Intonation Network. It was independently discovered by multiple people and has been known about since 1985 or earlier.

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Septimal Canright Scale, 7-limit just intonation
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28/27
9/8
7/6
5/4
4/3
45/32
3/2
14/9
5/3
7/4
15/8
2/1