What would be your favorite 3 tracks that demonstrate how great your system sounds?

I have a number of tracks that I use. I still use ELP's "Lucky Man" to see if I can shut an amp down and hear the low frequency stuff. Then Diana Krall "Garden in the Rain" to see if I can hear the noise suppression pumping in and out. 

Steely Dan, "Aja"
k.d. lang, "Constant Craving"
Mark Knopfler and Emmylou Harris, "Beachcombing"

Ticket to Ride (Beatles)
Timing and tone


Send in the Clowns (Sinatra)
If I close my eyes am I transported into the recording studio to hear Frank sing live?


Machine Gun (Portishead)
Dynamics, imagery and sibilance.


Needless to say, though my system still leaves plenty of room for improvement, it’s balanced enough and does as well as most that I’ve yet heard.

Three tracks? Of music???! Holy expectation bias, Batman! We would need to do a double-blind to be sure if they really can hear the difference between U2 and Bonnie Raitt. That is why I put on the XLO Test CD and give them the Radio Shack SPL meter. You should see the reaction! Jaw-dropping!