An audio engineer (also known as a sound engineer or recording engineer) helps to produce a recording or a live performance, balancing and adjusting sound sources using equalization, dynamics processing and audio effects, mixing, reproduction, and reinforcement of sound. Audio engineers work on the "technical aspect of recording—the placing of microphones, pre-amp knobs, the setting of levels. The physical recording of any project is done by an engineer... the nuts and bolts."

Acronym for the Audio Engineering Society (aes.org), a professional body which develops and defines a wide range of Standards in audio engineering and technology, as well as running trade shows and conferences around the world, and publishing a peer-reviewed technical journal.

In sound recording and reproduction, and sound reinforcement systems, a mixing console is an electronic device for combining sounds of many different audio signals. Inputs to the console include microphones being used by singers and for picking up acoustic instruments, signals from electric or electronic instruments, or recorded music. Depending on the type, a mixer is able to control analog or digital signals. The modified signals are summed to produce the combined output signals, which can then be broadcast, amplified through a sound reinforcement system or recorded.

Backlight: The third source in this lighting technique, the backlight (also known as the “rim light” or “hair light”) shines on a subject from behind, completing the light setup. This creates a rim of light or outline around their head that pushes the subject away from the background and gives a sense of depth.

The slang term for a small, battery-powered articulating boom list with a small footprint commonly used inside arenas and expo halls because its small form factor is useful for reaching hang points in confined spaces. The terms was adopted because the motion of the telescoping arm folds in a way that resembles the way one opens a beer can.

Rigging technique to suspend a chain motor or pick point between two existing points using steel aircraft cables or gacflex.

Considered the workhorse of the entertainment and live events industries, it is ideal for lifting and securing truss systems for lighting and sound rigs. Half-ton and One-ton models are standard, with additional options from quarter-ton up to three tons.

The term COPY THAT (often abbreviated as just "Copy") is widely used in speech and text-based communications with the meaning "I Heard and Understood the Message."

The department or company responsible for providing cast and crew with snacks, drinks and other assistance.

Craft service workers are nicknamed "crafties" and are represented by a union, the International Alliance of Theatrical Stage Employees.

Large drape, screen or curtain on the upstage edge of the stage used as a backdrop for a stage or performance area.

A monitor placed downstage, in full view of the stage, placed for the presenter's benefit. May display notes, powerpoint, scripting, or other pertinent information.