Quarteto 1111 was founded in 1967 and is one of the most influential progressive rock and psychedelic rock bands in Portugal. Brutal mellotron-fuelled progressive rock monster from Portugal in 1974 by José Cid's legendary band originally formed by Miguel Artur da Silveira, José Cid, António Moniz Pereira and Jorge Moniz Pereira, later joined by Tozé Brito, Mike Sergeant and Mário Rui Terra.

Quarteto 1111 was founded in 1967 in Estoril and is one of the most influential progressive rock and psychedelic rock bands in Portugal. Originally formed by Miguel Artur da Silveira (Drums), José Cid (Vocals and Keyboard), António Moniz Pereira (Guitar) and Jorge Moniz Pereira (Bass). Latter members included Tozé Brito, Mike Seargeant and Mário Rui Terra.

It was one of the many musical groups inspired in The Shadows. Originally called the Mystery Group (Conjunto Mistério), the name later changed to 1111 Quartet (Quarteto 1111). The name was inspired by phone number of the band's rehearsal place, at the drummer's house.

José Cid was the band leader, composer, keyboard player and lead singer. The rest of the band had a classic formation influenced by the usual Beatles line-up, but with a sound and song structure that reminds the early Moody Blues.

Since 1968-69 they got media attention through a hit single, "El Rei D. Sebastião", actually with lyrics about the theme of the lost Portuguese king, who supposedly died in the fields of Morocco during the battle of Alcácer-Quibir (a loss that would eventually lead to Portugal losing its independence to Spain). All the myths related with the return of King Sebastian — a quite anchored Portuguese myth — were fairly treated in this song. The harpsichord made its first appearance in Portuguese rock music. A single with the English version of the song was published in Great Britain.

The following works continued in the same vein, combining melodic songs with newly progressive instruments, namely the Mellotron.

Musicians:

Guilherme Inês, drums
José Cid, vocals and keyboards
António Moniz Pereira, guitar
Mike Sergeant, guitar
Tózé Brito, bass guitar

Track Listing:

Side A: Onde, Quando, Como, Porquê, Cantamos Pessoas Vivas Parte 1 - 16:42
Side B: Onde, Quando, Como, Porquê, Cantamos Pessoas Vivas Parte 2 - 13:10