Joy is the feeling that best defines the incomparable body of work Nickolas Ashford and Valerie Simpson created over their nearly 50 years together; it certainly shines through “Ain’t No Mountain High Enough”, “You’re All I Need to Get By” and so many more classics they crafted at Motown in the ‘60s and then for loyal clients like Diana Ross and Chaka Khan. “Solid” and “Found a Cure” prove they had plenty left over to fill their own hits.