If you thought Lenky Marsden invented minor-key melodies in reggae with his omnipresent Diwali riddim (the foundation for Wayne Wonder’s “No Letting Go” and Sean Paul’s “Get Busy”), check the Skatalites, who did it first with “Java” and “Eastern Standard Time.” Which is to say, the recent trend toward dancehall exotica is actually a tradition. Add original Skatalite McCook’s brand-new-second-hand album on Blood + Fire (classic roots, natch) to the mix, and the evolution of reggae riddim over tings and time becomes evident. In other words, there’s no future without a past, seen?