The exact recording behind this clip is not documented, which is typical of the short jingles that circulate through Brazilian WhatsApp groups. These vinhetas borrow the language of radio and television idents, compressing a station break into a couple of seconds that anyone can forward. It spread the way most WhatsApp audios do, passed from group to group as a ready-made Sunday hello, sitting alongside other morning greeting audios in people's collections. Its staying power comes from ritual: every week brings another Sunday worth announcing.