The Sociedade Artística Musical dos Pousos (SAMP) is an independent music school in Leiria, central Portugal, with an exceptionally strong community music programme for everyone from babies to the dying. SAMP musicians have been working in the city’s youth prison since 2004, first as volunteers, and more recently with funding from Fundação Calouste Gulbenkian, which supported the creation of Mozart opera productions in 2015 and 2017. The TRACTION trial builds on that experience through the co-creation of a new opera, written and composed by professional artists with inmates, relatives and staff members, using the Co-Creation Stage. The production will also use the Co-Creation Stage technology to link people inside and outside of the prison, in performances in Lisbon and Leiria. There were pilot performances in June 2021, with the full-scale production in June 2022.