In the current world of education, politics and public opinion, musical experience is increasingly threatened. It is designated ever more as an expendable luxury. This kind of general trend has hardly left the thinking in the field of music and music education untouched. Inspiration comes from the technical rationality of our time. This rationality affects an oblivion of ontology. In this article we discuss this trend related to Martin Heidegger's thinking concerning the human existence in the world, artworks and notions like "being" (Sein) and "oblivion-of-being" (Seinsvergessenheit). We think that it is possible to see this "oblivion-of-being" in relation to the trend in cultural and educational politics as well as in music educational thinking to focus on the instrumental usefulness of learning music.