Music history is a matter of research, it is a matter of novels, films, comics or computer games. Also: Music history is subject matter to music theater. Performances of music history lie at the center of this conference: Be it André-Ernest-Modeste Grétry’s opera prologue “Les trois ages de l’opéra”, Hans Pfitzner’s opera “Palestrina” or Franz Wittenbrink’s revue “Die Comedian Harmonists”, Heinrich Berté’s Schubert-operetta “Das Dreimäderlhaus”, Randy Johnson’s musical “A night with Janis Joplin”, or Mauricio Kagel’s Liederoper “Aus Deutschland” – historical musicians, artistic agency and musical artifacts have been negotiated in music theater for centuries. Music theater deals with a broad spectrum of music history, spanning from the medieval troubadours to the present creations of Pop, Rock, Jazz and New Music.