Sónar, Barcelona's music, creativity and technology festival celebrates its 25th anniversary. Since its inception in 1994, Sónar has remained true to its name and has continued to track the most innovative, radical and engaging music on the planet. To celebrate its 25th year, Sónar has decided to reverse its role, switching from radar to antenna. This is how the Sonar Calling project GJ273b was born in which a quarter of a century of musical exploration will be condensed and sent it into space, specifically to the exoplanet Luyten Star b, with the objective of making first human contact with an extra-terrestrial intelligence.











