Canto a cuncordu is one of the most deeply rooted and characteristic musical practices on the island of Sardinia. This form of religious singing is linked to liturgical and paraliturgical praxis and involves an arrangement of four male a cappella voices in pursuit of a full chorded sonority. Although most of a cuncordu repertoires vary greatly from one area to another, they are linked to the paraliturgical rites of Easter Week and, in particular, to the Good Friday services. These include processional chants, depictions of the crucifixion or the Descent from the Cross, versions of Miserere by Stabat Mater and special versions of mass for the confraternity community.
While singing a cuncordu has never ceased in towns such as Castelsardo and Santu Lussurgiu, in other places there has been a process of revival and revalorisation of the tradition. This is the case of Codrongianos, where the ensemble Su Cuncordu Codronzanesu has been working to reconstruct the liturgical and paraliturgical repertoire of the defunct Arciconfraternità di Santa Croce e del Rosario through oral witness research since 2009.