International Offenbach specialists Michael Kaye, Jean-Christophe Keck and Josef Heinzelmann agree on a text for the dialogue and recitative versions of Offenbach's posthumous masterpiece published by Schott Music in collaboration with Boosey and Hawkes and Bote&Bock.
See also http://www.youtube.com/view_play_list?p=86D04971546379E5
