Before achieving international fame as the high-powered vocalist of AC/DC, Bon Scott earned his bona fides in his native Australia – first with The Valentines and then with Fraternity.  A few years back, Cherry Red’s RPM imprint traced Scott’s journey with the pop-oriented Valentines.  Now, the Lemon imprint has collected his work with Fraternity in a new 3-CD box set Season of Change: The Complete Recordings 1970-1974 which includes an entire disc of never-before-released recordings. Fraternity formed in Sydney in 1970 from the ashes of Levi Smith’s Clefs, an R&B outfit with…