"Impromptu" refers to something that is done spontaneously or without prior preparation. It often describes performances, speeches, or events that are created on the spot, showcasing the ability to think quickly and adapt to the situation. This concept is commonly seen in various forms of art, such as music and theater, where artists may improvise based on their instincts and creativity. In the context of music, an impromptu piece is typically a short, free-form composition that allows musicians to express themselves without strict adherence to written scores. Similarly, in theater, actors may engage in impromptu scenes, relying on their skills to create engaging narratives in real-time, often leading to unexpected and entertaining outcomes.