The content originally appeared on: CNN Editor's Note: A version of this story first appeared in CNN's Meanwhile in the Middle East newsletter, a three-times-a-week look inside the region's biggest stories. Sign up here. Abu Dhabi, UAE CNN - Electronic music, strobe lights, glittered faces and hundreds of thousands of people in mixed-gender gyrations are all part of a new kind of ritual in Saudi Arabia that didn't exist just three years ago. The kingdom's Soundstorm music festival, which began […]