You may have seen this before. We posted Questlove 's full RBMA lecture (hosted by our own Chairman Jefferson Mao) when it dropped last spring. But on this what would have been James Yancey 's 40th birthday it's as good a time to revisit. In this excerpt from Questo's talk he recalls one of J Dilla's most technically impressive feats - his chop of Roy Ayers' "Ain't Got Time" for the Black Star track "Little Brother." And for an additional appreciation of this Dilla sample flip, check DJ Spinna's words too.