Great thread! There are indeed dozens of such moments I recall from the live operas I have attended. But two stand out:
- the entire single act of Elektra. I had the good luck to see it with Birgit Nilsson. This opera is dramatically and musically powerful. Right from the beginning the tension begins building, and it just builds and builds, without relief or let up. All of it leading, of course, to a shattering climax.
By the end my heart may not have been aching, but I was indeed overwhelmed, being totally drained emotionally, psychologically and physically. It was mesmerizing, and quite unlike anything else I have experienced in live opera. Strauss was a genius to do it all in one act.
- the final scene (scene 5, Act 3) of Wozzeck. Wozzeck has just murdered Marie and Marie's young son is outdoors playing on his hobby horse. Suddenly the other children are abuzz with the news of Marie. One child confronts Marie's son - "Du! Dein' Mutter is tot!" Marie's son does not understand and continues riding around, singing "Hopp, hopp! Hopp, hopp! Hopp, hopp!"
Then the other children decide to go look at the dead Marie who lies out on the path near the pond.
Marie's son continues to ride, but hesitates for a moment and then rides after the other children.
This is the very final action of the opera, and it is heart-wrenching. Still brings tears whenever I think of it.
pjg66