cd's/SACDS to test highs?


I am getting new speakers in a few weeks with a ribbon
tweeter. I want to see how extended and sweet the ribbons are. What cd's mostly, are great to test out a systems highs?
Thanks,
Todd
toddnkaya
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!
if you can, try bluray options as well. lots of movies with very detailed sections. the first sherlock holmes leaps to mind with several sections of high jingley things and detailed sounds.