In a vibrant display of color and sound, the spectacle "Uma Ideia de Futuro" lights up the city square of Terreiro do Pa�o in Lisbon. This videomapping show, featuring photographs by Alfredo Cunha and music by Rodrigo Le�o, transforms the facades of the city into a canvas of light and color. Following the multimedia exhibition, the stage welcomes the Orquestra Sinfonietta de Lisboa, the Coro de Santo Amaro de Oeiras, the Coro da Escola Art�stica do Instituto Gregoriano de Lisboa, and various soloists. These 180 musicians perform songs that marked the revolution, with themes by Jos� Afonso, Jos� M�rio Branco, S�rgio Godinho Fausto, Adriano Correia de Oliveira, Fernando Lopes Gra�a, and Carlos Paredes. As the music plays, images providing context to the songs are projected. The event culminates in the presentation of a new song, "Abril � Sempre Primavera," with lyrics by Jos� Lu�s Peixoto and music by Lu�s Varatojo and Filipe Raposo. (Photo by Joao Daniel Pereira/Sipa USA)