He was a lecturer of the "Studienstiftung des deutschen Volkes" (1990-2004) and has been chairman of the "Kommission für Musikwissenschaft der Akademie der Wissenschaften und der Literatur Mainz" since 1991, member of the Committee for Musicological Editions of the Union of the German Academies of Sciences and Humanities (since 1991) and of the Scientific Advisory Board of the Beethoven House (since 2001).