While the presence of musicology on public radio stations has considerably diminished over the last ten years, the use of radio creation to renew music mediation practices has, at the same time, produced particularly promising results. By looking back at the experiments carried out in the two CNSMDs (of Paris and Lyon) and in the ENS Ulm and Lyon for the independent program Metaclassique on the one hand, and in the radio creation workshop Le Labo (Radio-Télévision-Suisse) on the other hand, this study seeks to show how radio, mobilized beyond its journalistic reflexes, can be a privileged medium for developing a sensitive and otherwise reflexive relationship to the practice of musicology.