Music and languages formed the basis for the European Music Portfolio project (2009)(2010)(2011)(2012); http://www.emportfolio.eu), aiming to support teachers in their profession, by combining theories, methodology and practices. The focus of this paper is the study procedure on the impact of the international CPD courses for teachers, as one of the EMP -tools. One of the most interesting results reported was a better focus found by the teachers on the learning processes of children due to the experiences of integrating music and languages. How does music work in transversal learning and integrated teaching, as a support for the teachers?