A waltz is traditionally associated with the formal quinceañera entrance and dance.
The waltz gives the reception a ceremonial opening and is often performed by the celebrant with her father or another partner. A court of attendants may also participate in a choreographed version.
The tradition reflects the formal presentation aspect of the celebration. Over time, families have incorporated popular songs, Latin dance styles, and themed routines, so a modern quinceañera may move from a traditional waltz into contemporary music.
Waltz is the English name for the dance; vals is the Spanish term commonly used in quinceañera contexts. The music is not required at every event, and there is no single song that all quinceañeras must use. What remains recognizable is the association between the formal partner dance and the milestone celebration.