Final answer:
Sevillanas is a traditional Spanish dance where participants often dress up in colorful costumes, and clapping is a key rhythmical element performed by dancers and spectators.
Step-by-step explanation:
In Sevillanas, a traditional form of Spanish folk music and dance from Seville (Andalusia), both clapping and dressing up are essential elements. The dancers often wear colorful and elaborate costumes, which enhance the visual spectacle of the dance. The clapping serves as a rhythmic accompaniment and is performed by both the dancers and the audience to complement the guitar music and singing that typically accompany a Sevillanas performance.