I don't know what filk cassette this song was on. I bought it the same time as Bayfilk Crazies, from Off Centaur Music in El Cerrito, CA.

The portion of the lyrics I remember are:

The cat rune rules the heart;
And sand, the desert dune.
But he who rides the dark
Is the Lord of the night wind rune.

It is by a male vocalist.
Thanks in advance!