What Are Your Reference Discs? or Specific Reference Tracks

Anything but the fucking Eagles, man.

I've been using John Klemmer 'Touch', Robin Trower 'Bridge of Sighs', and Little Feat 'Waiting For Columbus' in both MFSL CD and 1/2 speed LPs for demo purposes since the 80's.

More recently I've used Dire Straights 'Brothers In Arms', Frank Zappa 'We're Only In It For The Money', and pretty much anything by Nickelback.

"The Riverboat Song" Ocean Colour Scene
"Lucifer" Alan Parsons Project"Sober" Tool"Bloody Well Right" Supertramp

Excellent suggestions as above.

Mine-
Jamie Cullum -"Twentysomething" CD/SACD Verve (2004)

I share or showoff what ever music I'm into at the time. For me, it's not the detail of your system, it's the music you want them to hear and maybe to share your interest and enjoyment.

I just use 1 piece of music.  David Byrne - from the "Grown Backwards" disc, the song "Lazy".  I don't buy much in the way of new stuff but want to make sure that things are banging on all cylinders.  This has lots and lots of dynamic range.  For example, was looking at some Klipsch LaScala's some years back and put this on.  When the bass kicked in, you could immediately hear the short comings in the woofers, there was damage to try and deal with, on something that someone wanted full pop at the time.  I passed.  The high end on this equally pushes the tweeters.  In the case of the LaScala's they sounded wonderful.  I have to admit this isn't perfect.  I missed on some JBL 4312's and had to buy a new driver.  There was a frequency in the mid-range that was pure static, for whatever reason.