The Great Society was Grace Slick band before she joined Jefferson Airplane.
Ironically it was the two Great Society songs "Somebody to Love" and "White Rabbit" that became Jefferson Airplanes biggest and probably best known hits.
The Great Society versions are quite different.
Somebody to Love, written by Darby Slick, is much slower and melancholy.
As Darby says; "Our version was sadder. I'm not saying it was better ...."
White Rabbit is also slower and has a long instrumental intro.
Undoubtedly Jefferson Airplane were the better musicians but the Great Society recordings perfectly capture the transitional evolving folk-rock sound of 1965/66