Bangu Atlético Clube, founded in Rio de Janeiro, has long been known by its red and white colours and the Castor nickname. Rádio Globo used short musical and spoken vinhetas like this one during its football coverage to quickly identify the team involved in a match. Clips preserved by Brazilian football channels on YouTube later spread beyond live broadcasts, circulating among supporters and editors who collect classic radio jingles. It remains popular because it captures a specific era of Brazilian football listening in just a couple of seconds.