Sentence:  Re-hearing the Curtis Mayfield-avant soul of "Judgment", the proto-acid jazz groove <WSD>vonce</WSD> of "Tune Up", the neo-soul slow drag prophecy of "Rosemary Blue" (penned by Neil Sedaka!) 25 years later, I know now that I totally slept on a most seminal pop vocal album. 
Meaning of the word marked with <WSD> tags:  (jazz) A state in which the musician produces great improvization intuitively.