The Tech Club or technical crew, often abbreviated to “tech crew” or “technicians”, are the individuals behind the scenes (backstage) who control all the technical aspects of creating a concert, play, or other live performance. The technical crew can be divided up into several crew members: Stage Manager, Props, Back-Stage crew, Lighting Desk Operator, Followspot(s), Master Electrician, Deck Electrician, Sound Desk Operator, Sound Manager, Mic Manager, Stage Hand & Flymen (a fly crew is a group of people who operate a fly system from its locking rail during a play or musical. Some of the duties of a flyman are loading and unloading scenery, maintaining and repairing the equipment for the fly system and scenery, building and setting up stage scenery, raising and lowering suspended scenery during a performance on cue, operating the mechanical components of the stage, and storing and setting up scenery).
The role and composition of a tech crew can change significantly depending on the nature of an event, and often evolves as the production does. For example, in a simple theatre production, the technical crew might consist of a single person, operating the lights and controlling the volume of the sounds and music. In a large scale professional theatre productions, the technical crew can consist of dozens of different departments and may run into the hundreds of individuals. Each department has their own specific job that pertains to their area of expertise, but they are all part of the technical crew.