Which is the role earthenware musical Instruments are developing as a means of cultural transmlssion in our history? Objects which become instruments, as whistles, are presented as pieces of popular tradition whose antecents are settled in prehistoric, ancient and medieval art, Christian as well as Islamic. This fact leads the author to an investigation of texts, documents and archaeological material in order to ¡Ilústrate their variety of uses (hunting, decorative purpose, celebrations, games...), functions and structure.