"Há um mar que nos separa" was made available for streaming on 20 March 2015 in RTP's website.[2] The song was later released on 7 April 2015 as a digital download through RTP and Universal Music.[3] A promotionalCD single will include the main Portuguese version, plus an English version, a Spanish version and two acoustic versions.[4]
Composition
"Há um mar que nos separa" is an electronic rock-influenced pop song which lasts for a duration of two minutes and fifty-nine seconds.[3] Lyrically, the track features Andrade reminiscing about a past lover as she sings the line, "If it's the sea that separates us/
I will dry it with longing".[5]
Live performances
Andrade performed "Há um mar que nos separa" live for the first time during the first semi-final of Festival da Canção 2015 – the Portuguese national selection for the Eurovision Song Contest. Andrade performed the song as well in the grand final four days later where it won the competition. On 27 March, Andrade performed the song at the charity event Maratona da Saúde.[6] On 19 April, Andrade performed an acoustic version at Got Talent Portugal alongside composer Miguel Gameiro.[7]