She got the songwriting credits on The Last Album for some copyright reason I can't remember, but I believe on Music is the Healing Force of the Universe and The Last Album Ayler wrote most of the music and Parks wrote the lyrics. Henry Vestine got a few songwriting credits on the tracks he appeared on.
It all happened 'cause Albert was in love (or something). Mary never did squat, other than messing up Albert and some of his legacy. I hope she buys some good "stuff" with the money.