Going to a music festival or a gig? Want to know how to take great photos to capture that special moment? Read these brilliant tips of a professional photographer who takes pictures of some of the world’s biggest music stars and has been to more than 100 festivals. He knows what he’s talking about and his photos prove it. From heavy metal band Metallica at the 2014 Glastonbury Festival to Lady Gaga in Carlisle, Gary Stafford has photographed some of the…