"Refrain" is a song recorded by Swiss singer Lys Assia with music composed by Géo Voumard and lyrics written by Émile Gardaz.

[5] On 24 May 1956, the first Eurovision Song Contest was held at Teatro Kursaal in Lugano hosted by Radio svizzera italiana (RSI) on behalf of the SRG SSR, and broadcast live throughout the continent.

"Refrain" thus performed ninth, following the Netherlands' "Voorgoed voorbij" by Corry Brokken and preceding Belgium's "Le plus beau jour de ma vie" by Mony Marc.

No video recording of the performances is known to have survived, only footage of the winning reprise exists in addition to the audio of the full radio broadcast.

[6] The 25 May 1956 issue of the Italian newspaper La Stampa, published the day after the contest, wrote that "Refrain" received 102 points, which represented 72.8% of potential the theoretical total available for each song.