Mário Lúcio, Cape Verdean writer, singer and composer, born in Tarrafal, evoked the "mistreated" and "outraged" people at the opening of the show, narrating the suffering of the first prisoners' journey across the sea, until they reached the exile that was to imprison almost 600 people.
"It is no longer a prison and may it never be again", said Teresa Salgueiro, who then sang "Por trás daquela janela" which José Afonso dedicated to those who were also imprisoned in Caxias under the dictatorship.
The music of Angola echoed with the voice of Paulo Flores, music "made of both suffering and hope", he explained, and later on, he sang "Amanhã", by Duo Ouro Negro.
Karyna Gomes brought to the stage the voice of Guinea-Bissau, "a fundamental country" for the freedom that is celebrated today, because the liberation struggle dictated it.
"Our fight was all sung" and these were the themes chosen for a unity show, in which the singer asked Amílcar Cabral to "hurray".
"He lives in us", she added, evoking the leader for the independence of Guinea-Bissau and Cape Verde.
Almost at the end, the four got together to sing "Venham mais cinco", by José Afonso.
In the front row of the audience, the President of the Portuguese Republic, Marcelo Rebelo de Sousa, the Cape Verdean head of state, José Maria Neves, and the Minister of Defense of Angola, representing João Lourenço, watched the show. The Guinean President, Sissoco Embalo, intervened in the special session at the end of the morning, but was absent shortly afterwards.
In speeches at the time, the heads of state pointed to the old camp (today, a museum) as an example of what is never wanted again, defending the consolidation of democracy and freedom.
