Professionalise or perish; a case for heightened educational quality through collegiate cooperation. In this article, I will argue for the necessity of developing a professional jargon among music teachers; a collegiate discourse in which musically and artistically relevant aspects of music-making and music education are continuously addressed and cultivated in order to improve the quality of music education on all educational levels. As my point of departure I present findings from my doctoral thesis which suggest that music teachers may be unaccustomed to discussing the sounding aspects of music and that they have low confidence in their didactical efficacy. Drawing from different fields of research, I sketch some prerequisites for a refo...