Favorite song to demo or test drive speakers?

+1 Jan Hammer/Jeff beck song. Great choice. 
Walk on the Wild Side, Lou Reed. (Background singers!)

Poinciana by Keith Jarrett Trio, Live in Paris (drums first, then the most beautiful sounding piano—great for comparing DACs)

Follow Me Home, Dire Straits (soundstage test for ocean waves, then bongos, drums, then bass and various guitars...and then vocals). This track will mesmerize you on a good system. 

Electrified by Yello

An Analogue Productions sampler disc and Columbia House vol#1 sampler are the first ones.There's a little bit of everything on those.Next up after the new thing settles in is some live recorded rock,Who,Stones,Zeppelin,Tull.Can the system untangle the instruments and vocals without being stressed?Finally a recording of my son singing and playing guitar needs to be accurate.

Feel free to download.

Scott Hamiltion "That's All"

Michael Jackson - Thriller - Billie Jean