Six note dwarves and clusters

Dwarf(<6 9 14|) is in the Scala directory twice, once since it is a
genus (genus(75)) and once as cluster6b, about which the description
line says "Six-Tone Triadic Cluster 4:6:5". A similar remark applies
to dwarf(<6 0 14 17|), which is genus(175) and cluster6h, "Six-Tone
Triadic Cluster 4:7:5". It would be interesting to know who cooked up
these clusters and where.

The 5-limit standard val doesn't have a dwarf, since it is contorted,
but the 7-limit standard val does. This, like a number of the other
dwarves, is not in the Scala directory; I give it below. It's pretty
well supplied harmonically, with one major tetrad and two major triads.

! dwarf6_7.scl
Dwarf(<6 10 14 17|)
6
!
8/7
5/4
10/7
3/2
12/7
2