The Black Keys are now well beyond obvious blues-rock duo comparisons, having carved out three of the best head-in-the-past, riffs-in-the-future albums of the past decade. Before ditching the only home they'd known, blues staple Fat Possum, for the NPRarified air of Nonesuch, Dan Auerbach and Pat Carney threw together this fitting farewell, saluting deceased labelmate Junior Kimbrough. In the process, they avoid the hammy recreations that cover albums often bring: This is no or , but rather an acknowledgement of a hero and a simple cap-tip.