Share the cultural commitment over time, from the study of singing at the Conservatory, to the practice of early music, to the experience of musical theatre and with the attention paid to Sardinian music. From all this, the project «A Boxi Iscapa» (free voices), a work in which the duo formed by Elena Ledda and Simonetta Soro is measured by the vocal repertoire of the tradition. Songs of birth, training, work and love are proposed a cappella in the essence of the free and expressive voice.