Smooth soul
Smooth soul is a fusion genre of soul music that developed in the early 1970s from soul , funk and pop music in the United States . 
<triplet> Smooth soul <subj> soul music <obj> subclass of <subj> United States <obj> country of origin <triplet> soul music <subj> United States <obj> country of origin <triplet> funk <subj> United States <obj> country of origin <triplet> pop music <subj> United States <obj> country of origin