Who is this lady?

[Eva Elisabeth]

Thanks, Roger - I checked the Google, actually you get harps (meanwhile?) at 3,000€, however a "professional" is (still?) in and above Vinnie Ream's category.

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I found what I was thinking of (wrote myself about the NY performance) - Robert played a gues role in the final "death scene", which his father missed because he had left earlier. It would have been the only performance with father and son in one theater - they never attended together. The plot is about the assassination of Swedish King Gustav III.