1st SACD Purchase

I just acquired a transport that plays SACDs.  I own a few thousand CDs, but not a single SACD.  So, I want to purchase a SACD to give this transport a run for its money.  Please suggest to me one SACD release that will really expose my transport and the rest of the system to a good test of its capabilities to reproduce quality sounds.  Any genre works for me.

Thanks