This paper contains meta-theoretical considerations about the status of the research in music education. The author states, that music education – at least in Germany – concentrates on «Empirical Education Research» and works with the repertoire of methods oft the empirical social sciences. This is contrasted by reflections on the possibility to see music education as cultural sciences. These are explained on the basis of «performance» as an «umbrella term» of the cultural sciences. It is shown that an university of art, which unifies performance experts of all kinds, can be a predestined place for interdisciplinary research on music classes as a special kind of performativity.