Hayes, Isaac: Hot Buttered Soul (Vinyl LP)Originally released at the end of the '60s, Hot Buttered Soul set the precedent for how soul would evolve in the 70's simultaneously establishing Isaac Hayes as a major music force. Although the tracks were lengthy, there was no sense of self indulgence, each one evolving over sensual rhythms and taut arrangements. Hayes' vocal anticipated the 'rap' genre of Barry White and Millie Jackson without slipping into self parody, lending an air of