Sum­mer fes­ti­val sea­son is on the hori­zon. Here’s our annu­al fab­u­lous fes­ti­val guide to see you through from mid May to the end of Sep­tem­ber. The fes­ti­val land­scape has been chang­ing rapid­ly over the past few years and some events have strug­gled to keep afloat; we’ve said good­bye to a num­ber of much-loved ones. On…