Other than the paradoxically blazing out in splendor yet rigorously controlled conducting of the late great Dimitri Mitropolous, this live performance from Florence is a vocal disasster. Anny Konetzni in the title role, past her prime, has no notes above A flat. Her attempts at high Cs emerge as yelps. Daniza Ilitsch is an acidic Chrysothemis and Hans Braun a boring Orest. Only Modl, a Klytaemnestra in her vocal prime, is satisfying. Her top notes ring out which indicate that at that time she was in transition to hochdramaticsche roles.