A piece of scenery is an important part of any stage production. It can be a BACKDROP, a DROP, or a FLAT. A BACKDROP is an often large and decorative background that is used to create the setting for a scene. A DROP is a large piece of fabric hung from the ceiling of a theater to create a background. A FLAT is a large, thin piece of wood or canvas that is used to create a wall or other surface on a stage. All three of these pieces of scenery are essential for creating the atmosphere of a play or performance.