What is the One Test Track That Tells You Almost Everything About A System?

Back when I was writing reviews and once I was comfortable a review component was burned in I’d always start out playing “Muddy Water” from Keb’ Mo’s Slow Down album.  It doesn’t catch everything, but it revealed a lot so that if I noticed something was off I knew which direction to go next.  Cymbals are well recorded without hash and plenty of tone from hi hats to crashes and is a great acid test for that, and bass is prominent but should never lag or be overblown so is also a good test there.  It’s got harmonica, woodblocks, and cowbells that are dispersed front to back, left to right and should clearly occupy their own spaces within a 3D stage, and the crash cymbal should come from the far back right of the stage.  Keb’s vocal should be full but not chesty or muddy with a touch of sibilants that should not be squelched.  Likewise the snare should have a clear, crisp crack and not sound muted and you should also be able to hear the stick sound hitting the ride cymbal.  If any of these nuances were missing or if the soundstage was not clearly three dimensional front to back I would know something was compromised and should be pursued with other material.  My system is very neutral/transparent and I’ve played this on several six- and seven-figure systems so very  familiar with how it should sound.  As I said, it doesn’t capture everything but does reveal a lot and is a great album BTW.  Just another suggestion FWIW. 

What is the One Test Track That Tells You Almost Everything About A System?

Doesn’t exist - need multiple test tracks to test voices, acoustic instruments, dynamic range like orchestra, familiar music.  

@ulcerdoc 

I don't have test records or test tracks; I generally just go on to the next thing I want to listen to. I dialed in a new (to me) pair of Spendor a2s while I was listening to the Bee Gees - Spirits Having Flown and the soundstage popped into precise focus.

A bit pedestrian maybe, but…Pink Floyd’s Another Brick in the Wall.   So much more qualitative acoustical content than one who’s not familiar might think.  

One is very hard,  but here are 3 I like. 

"Calling all occupants of interplanetary craft" by Klaatu, "At the end of the evening" by Nightnoise,  and "The friends of Mr Cairo" by Jon & Vangelis.    I pick these because I really, really like them. One of these is often the last song I will play at the end of a night of listening.   If I want an emotional experience I will play "Cry" by Godley & Cream.    I am not saying these are the best, but these among others are the vinyl lp's that I bring to a shop to consider a purchase. Not that this is the questioned asked, but here are my other songs (lp's) I play at shops. "Money" by Pink Floyd, "Growing up in Hollywood town" by Amanda McBroom, and "Irobot" by Alan Parsons.