“Cleveland Rocks” is the name of one of Ian Hunter’s best-loved compositions. First released in 1979, it’s since became the de-facto anthem of the city, a rock proclamation whose title has always rung true.  Cleveland’s rock scene during the ’70s was largely championed by Steve Popovich, a former Cleveland resident who ended up being the head of A&R at Epic.  In mid-1976, he left the corporate rock world and headed back home to Cleveland, where he set up Cleveland International Records, part record label, part management company, part marketing consulting group.  Throughout…