Grammy-nominated Danish band takes ‘7 Years’ — an ‘old-style country ballad’ — and other meaty numbers into show at Rebel on Wednesday. Nick Krewen  Music, Tues. Jan 24, 2017 It’s sold more than four million copies in the U.S. alone, is nominated for three Grammy Awards and is a poignant synopsis of one person’s life from past to present. But for all the lifetime of experience chronicled within its four-minute…