Welcome back to another edition of The Weekend Stream, The Second Disc’s review of notable catalogue titles making digital debuts, plus new works from legacy acts and even some personally curated favorites. There’s new and old works from three of the best British white guys to ever do it, plus a boatload of Hugh Masekela treasures, a legendary punk session and plenty of exciting ’70s country nuggets. Sting, Mercury Falling (Expanded Edition) (A&M/UMe) (Apple / Amazon) For the 30th anniversary of Sting’s fifth studio album – a quirkier affair than previous, with tracks…