By Emily DiAlbert, Contributor [4AD; 2017] Rating: 7.5/10 Key Tracks: “Empire Line”, “Carin at the Liquor Store”, “Sleep Well Beast” Sleep Well Beast, the seventh studio album by the indie-rock band The National, delivers a chaotic-yet-beautiful glimpse into the life and relationship of angsty frontman Matt Berninger. Berninger and his wife Carin wrote the record together…