There were two secret signals in the military coup: first the airing (at 10:55 pm) by 'Emissores Associados de Lisboa' of the song E Depois do Adeus by Paulo de Carvalho, Portugal's entry in the 6 April 1974 Eurovision Song Contest, which alerted the rebel captains and soldiers to begin the coup. Next, on 25 April 1974 at 12:20 am, Radio Renascença broadcast Grândola, Vila Morena, a song by Zeca Afonso, an influential folk and political musician-singer forbidden on Portuguese radio at the time. This was the signal that the MFA gave to take over strategic points of power in the country and "announced" that the revolution had started and nothing would stop it except "the possibility of a regime's repression".
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