"Mais Uma Vez" is a song composed and sung by Brazilian musicians Renato Russo and Flávio Venturini in 1986. It was released as the first single of Sete, a 1987 album by Venturini's band 14 Bis. Background and writing In 1986, Flávio Venturini was getting to know Renato Russo at EMI-Odeon studios in Rio de Janeiro, when 14 Bis and Legião Urbana were in rooms close to each other recording their next albums (respectively, Sete and Dois). Venturini, who had arrived earlier than his bandmates, was practicing a new song for the album when Russo entered the room and asked to write the song's lyrics. Russo proposed lyrics about a father telling his son that the Sun would shine after a storm. Venturini liked the idea and sent him a tape with the song's music, under Russo's promise of sending him the lyrics. Due to Russo's commitment with Dois, he could not send the lyrics until three months after their meeting. Russo did some slight melody modifications, following some improvisations. The song was composed in B-flat major and possessed an andante tempo. In the 14 Bis version, Venturini sang falsettos in the chorus, while Russo sang the remaining verses with a natural voice; on the clip version, however, Venturini sang the entire song alone. On Russo's solo version, he sang alone. Venturini invited Russo to join the song recording with 14 Bis, which resulted in Sete's final version. According to one source, Venturini sang the entire song, after which Russo sang the entire song. They then picked their favourite parts from producer Mayrton Bahia's final edited version. Russo, however, said that he could not explain the melody to the group. Instead, he recorded guide vocals that the band later decided to use in the final version. Structure and Lyrics The song was composed in B-flat major and possesses an andante tempo. In the 14 Bis version, Venturini sings falsettos and the chorus, while Russo sings the remaining verses with a natural voice. On the clip version, however, Venturini sings the entire song alone. On Russo's solo version, he sings alone. The lyrics feature several motivational sentences like "espera que o sol já vem" ("wait because the sun is about to come"), "nunca deixe que lhe digam que não vale a pena acreditar no sonho que se tem" ("never let people tell you it's not worth it to believe in your