cd's/SACDS to test highs?

Thanks everyone ! Really appreciate all the great recs.
I love Dead can dance. I have most of their CDs .
I do like jazz,blue grass,folk,alt country,rock
Would female opera singers be a good test as well?

whether female opera would do what you want. One good recommendation would be Joan Sutherland available on arkivmusic.com as Classic Recitals-Joan Sutherland Opera Arias. It goes back to 1959. The flexibility of the voice is amazing, have not heard anyone else who came near. She never sounded that good by the mid 60's. Highly recommended.

Keith Jarrett's "Death And The Flower" is now on SHM SACD, and is a lot of fun in the highs.

I've never heard close-miked opera, so the highs are generally somewhat muted compared to more modern stuff. Of course, it's a more realistic portrayal of what one would hear from the audience, but I don't think that's what you're looking for at this point.

Thanks again for all the recommendations.
Now that I have a few cd's to look into, is there one or two SACD's that really work out a speakers tweeter. The whole SACD must be great as well, not just a track or two.
Appreciate all the contributions!