It kind of reminded me of an early Ornette Coleman record.
Ornette was a Jazz Sax Man. The type of jazz he performed was supposed to use dischord and/or disjointed phrasings based on the melody. I suspect even Miles Davis was influenced by him.
From what I briefly listened to, The Shaggs were vocal stylists of their own making. Esthetically, I personally find it easier to enjoy music like Ornette’s vs The Shaggs.
Gentle Giant (Progressive Brit group; 70’s) were vocal stylists too.