I might as well give this:

[0 5 10 15 18 23 28]

5553553 c = 4

[0 5 10 15 18 23 26]

5553535 c = 3

[0 5 10 15 18 21 26]

5553355 c = 3

--- In tuning-math@y..., "genewardsmith" <genewardsmith@j...> wrote:

> I might as well give this:

>

> [0 5 10 15 18 23 28]

> 5553553 c = 4

>

> [0 5 10 15 18 23 26]

> 5553535 c = 3

>

> [0 5 10 15 18 21 26]

> 5553355 c = 3

Yes, that augmented sixth in the last scale gives you a nice 7-limit

consonance that doesn't occur in the other scales.