The swell “Yellow Theme” eases you into the first of the two albums, combined into the double album “Yellow & Green,” before Baroness open the throttle at full tilt with “Take My Bones Away.” The combination of powerful heavy rock and catchy melodies is the key to the band’s massive appeal. “Yellow” may fall more under the category of rock than metal (and as far as I am concerned, a long way from “sludge”), but that doesn’t negate the fact that Baroness play energetic music and their new album kicks ass. Laden with pathos, it goes on with “March to the Sea,” and it is not for the first time that John Baizley’s voice reminds me of Metallica’s James Hetfield. Baizley also contributed some amazing artwork to the release again. The new wave beat of “Little Things” may disconcert some, but for me this is one of the album’s standout tracks. Going through eighteen tracks, track by track, would probably test your patience, so let’s just summarize that the album masters the balladesque and atmospheric as well as the heavy, sprinkled here and there with psychedelia. Highlights on an already formidable double album include “Cocainium,” the uptempo anthem “Sea Lungs,” the groovy “Board Up the House” and “Psalms Alive.” Also, check them out on tour this summer across Europe and in the UK.