Live performance, part of Monteverdi cycle staged by Oper ZĂŒrich with Nikolaus Harnoncourt conducting the ZĂŒrich Opera House Monteverdi Ensemble. Staged and directed by Jean-Pierre Ponnelle. Filmed 28 March â 20 April 1978 in Vienna, sound recorded 1 â 25 December 1977 in ZĂŒrich.