Modern technology is an important factor influencing the strategies of learning and teaching music. In Slovenia the information-communication environment Musical Image Format, Rhythm created by the authors represents the first example of the transfer of image format of music into the computer environment. There are two important elements of successful learning in this environment, i.e., properly conceived system architecture and graphic user interface, which enables simple and transparent as well as creative and problem based learning in the virtual community. At the same time the elaborated computer environment proved to be an adequate didactic tool in the establishment of the conditions for blended learning. The pedagogical evaluation of the prototype has shown that pupils have achieved the highest difference in their average marks before and after the research in the area of the use and the understanding of image music format. Significant results are achieved also in the field of recording and performing music format.