Active for over a decade, De Calamus is a large ensemble that consists of nine musicians, from different as much as rich musical, united by the desire to rediscover, protect and enhance the musical traditions of the Comito Valley, linked to the use of the zampogna and of the organetto by many itinerant musicians, who used to cross this beautiful valley, located in the heart of central Italy, between Rome and Naples. To characterize the musical approach of the group is the rigorous research carried out in the field and on traditional sources, combined with the use of traditional instruments such as zampogna, ciaramella, organetto, ocarina, chitarra battente, accordion, pastoral flutes and fram drums to which is joined a particular attention to the voices, with the presence of three singers in the formation.