MainStage

Mainstage is a term used in live performance and event production to denote the primary performance area or the main platform for large-scale acts. It is commonly used in theater, concerts, and festivals to describe the most prominent stage where the main artists perform, as well as the central focus for lighting and audience attention. The concept contrasts with smaller or secondary stages and with backstage or rehearsal spaces.

In theatre, the main stage refers to the principal performance space within a venue. It is usually equipped with a fly system, lighting rigs, and a front orchestra pit or seating arrangement that centers the audience’s view. The term can be used to distinguish the primary stage from auxiliary spaces such as rehearsal rooms, black box stages, or ancillary performance areas.

In music and live events, the main stage at a venue or festival is the largest and often the most weather- or acoustically demanding space. It typically hosts headline acts and high-profile performances, attracting the largest crowds. Festivals may operate multiple stages, with the main stage serving as the central hub of activity and media attention.

MainStage is also the name of a live-performance software application developed by Apple for macOS. It is designed to run virtual instruments, amps, and effects for on-stage use. MainStage supports Audio Units plug-ins, external MIDI controllers, and custom setups organized into concerts, patches, and scenes to facilitate quick transitions during performances. The software is commonly used by touring musicians and performers who require a portable, reliable live rig.