From the 80s, when you could play this kind of music and get an apparently-decent recording contract, here is some James Blood Ulmer. It seems to fit the mood of the day.
Harmolodics, for the unitiated, is a homebrewed theory of improvisation practiced by Ornette Coleman. I suspect it's more “some things Ornette did or suggested, as elliptically described by him” than a true theory. See also Ornette Coleman's Prime Time and Ronald Shannon Jackson.
A little stylistic feature in this type of playing is that they like to put a stop or accent on 4— every measure or every two measures. A minor thing you'll hear a lot.