Stevie Wonder's love letter to the musicians who shaped him. He wrote it as a tribute to Duke Ellington, but the song expands beyond any single figure to become a celebration of the entire tradition of Black American music. Sir Duke is not just Ellington. He is Basie, he is Satchmo, he is everyone who ever picked up an instrument and found a way to make it say something new. The horn chart that drives the song is a marvel, Stevie's way of proving that he could write for brass as well as anyone who came before him. The joy in the track is infectious, a master musician paying his respects to the masters who cleared the path.

That same tribute gets a gospel transformation in