Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Bad blot on a fine recording

Barenboim's conducting is superb, and most of the singers here are better than good. Unfortunately, the result is marred by the ungainly Elisabeth of Jane Eaglen, who is in very poor voice here. I believe an over-dosage of Wagnerian roles in recent years has taken a heavy toll on her voice and she often sounds strident and off-pitch in higher notes. Her phrasing is also less expansive than in the past. Furthermore, her interpretation lacks depth. What a bad blot on what is otherwise a fine recording.