S.T.ER.E.O - Sing in Tune ovER the bOrders - is an Erasmus+ project carried on from December 2018 to June 2021. The focus was MUSIC, seen as a universal language able to link people with different cultures. The final product of this adventure is a multilingual hymn, composed and recorded by the partners together. the project was attended by students aged 12-14 from three schools in different countries: France (Montpellier), Italy (Saluzzo), Poland (Radowo Małe). The schools carried out over 40 learning activities and 5 student exchanges (1 on line) and involved more than 300 families.