The Göttingen Handel Contributions (GHB) are published as a yearbook and are published by Laurenz Lütteken and Wolfgang Sandberger on behalf of the Göttingen Handel Society. With Oskar Hagen's Rodelinde pioneering work, opera took center stage at the first Göttingen Handel Festival in 1920. The symposium marking the centenary was therefore dedicated to the topic of opera as a business, from the interaction between aesthetic judgment and commerce, to capitalist business structures and the content implemented in the libretti, to the most expensive aspect of the opera enterprise, the singers. Volume XXIII contains all the lectures at the symposium as well as the keynote lecture by Wolfgang Sandberger, which on the occasion of the anniversary traces the continuities and breaks in the history of the festival. As always, the volume is supplemented by the bibliography on Handel literature and the communications from the Göttingen Handel Society.