In Spanish broadcasting, a cortina is a short musical bumper played between segments, and a percussion version relies on drums alone to keep the transition lively without words or melody. These stings became a staple of radio and television production because they could signal a change of topic in just a few seconds, and the same function carried over to podcasts, YouTube videos and social clips. Creators still reach for percussion curtains because they are neutral, energetic and easy to place, working across languages and formats without needing any explanation.