 His delivery overflows with emotion" in his song "I Can't Turn You Loose".Booker T. Jones described Redding's singing as energetic and emotional but said that his vocal range was limited, reaching neither low nor high notes.Peter Buckley, in "The Rough Guide to Rock", describes his "gruff voice, which combined Sam Cooke's phrasing with a brawnier delivery" and later suggested he "could testify like a hell-bent preacher, croon like a tender lover or get down and dirty with a bluesy yawp".