In theatre, which term refers to a gradual build-up of action leading into the next scene?

The term that best captures the idea of a gradual build-up of action leading into the next scene is known as a segue. This term is commonly used in theatre to denote a smooth transition between scenes or elements of a performance, allowing the narrative to flow seamlessly from one moment to the next. A segue is important for maintaining the audience's engagement and understanding, ensuring that the shift from one scene to another feels organic rather than abrupt.

The other terms, while related to theatrical concepts, do not specifically describe the gradual build-up of action in the same way. Escalation typically refers to a rise in intensity or tension, which might occur within a scene rather than between them. Transition refers more generally to the process of moving from one scene to another, but it does not highlight the aspect of build-up or continuity as clearly as a segue does. Momentum in theatre refers to the energy and pace of the performance overall, rather than the specific transition between scenes.

Thus, a segue is the most fitting term to describe the gradual build-up of action leading into the next scene, emphasizing that smooth connection in storytelling.