As a music festival features numerous bands, all requiring different types and combinations of equipment, there's a lot of work involved in making sure every act is accommodated sound-wise. A technical stage manager makes sure that all the audio, lighting, backline and other stage requirements are fulfilled for all of the artists playing the festival. He works with the stage crew, ensuring a proper infrastructure is put in place to provide each act with adequate sound and lighting. For example, if a band has a unique keyboard arrangement, he will make sure that it is properly hooked up to the sound system.
Security personnel handle the safety and security needs at music festivals, protecting those in danger and ejecting people disobeying festival rules. A security worker might stand up in front of the stage, protecting the artists from over-enthusiastic fans and making sure that no one is being roughed up in mosh pits. Security personnel also ensure that festival-goers don't access areas designated for festival artists and crew only, checking people for appropriate passes.
Music festivals exist thanks to the efforts of workers or volunteers performing various duties, from concessions to clean-up. A coordinator is there to make sure that these employees know where to go and what to do. He works with other festival coordinators and determines how many workers are required and what types of roles must be filled. A coordinator recruits employees by placing ads in newspapers, online, radio, etc., and arranges for the proper training of these volunteers. Upon completion of training, the coordinator then arranges work schedules and supervises while at the music festival.