If you’re flying through Cleveland anytime between now and the end of February, you might want to give yourself a little extra time. Hopkins International has mounted a five-month exhibit of the rock music industry photographs taken during the 40-year career of Janet Macoska. Her works have been displayed at the Rock and Roll Hall of Fame and Museum and are a permanent fixture at the National Portrait Gallery in London and at Hard Rock Cafe restaurants and casinos around the world. The rock hall presented a retrospective of her work in 2003 and 2004 and it has since been displayed in Dallas, Orlando and Toronto. The airport exhibit is in the public art gallery at the entrance to Concourse A.