Best song for immediate impact when presenting or testing?


I, as most of you, have my regular tunes that I play or listen to when trying out a new system or playing music for friends. My current starter is 'Feels like Rain' by Aaron Neville. It engages me immediately because I love it so, but it is also very well recorded and has a bass voice doing backup which in the right system has a real visceral impact.

I was at an Audio shop recently, listening to my standards, and wanted to show the sales consultant a piece that he might not have heard. I played 'Golden Rust' off the Miles Gurtu album. After about 30 seconds, he pulled out his device and added the song to his favorites. I asked why did he add so quickly, and he said that the opening electronica had a three dimensional stereophonic quality that made a remarkable impression right off the bat. I paraphrase lightly; that was his comment.

What pieces do you play of any genre that have an immediate impact, especially for people listening to a good system for the first time?
128x128cmjones
Best to have a minimum of 3 ref tracks for your listening tests.  I use 12.  You are not looking for a target song, but a fence collection.  You want to hear the edges.

@cymbop You might be interested in knowing that Steely Dan, among others (Eagles) did some final mixes using Magnepan speakers.  

Cheers!
Siri's Svale Band ‎– Blackbird (1st cut) - sold many a speaker. Joseph Audio used it as their demo SF Stereophile show in '80s?

Makes you want to start smoking again . . . and by a ticket to Norway. 

In the 1970’s JBL put out an LP intended to be used to evaluate the sound of their new L100 loudspeaker. The LP contains tracks from commercially released albums, one of which is "Donovan’s Colors" from Van Dyke Parks’ Song Cycle album. The recording contains many different instruments (including harpsichord), as well as some non-instrument sound effects. The song (and the entire album) is as musically interesting as it is sonically stunning. Song Cycle was Van Dyke’s first project after he finished his work with Brian Wilson on the ill-fated Smile album. Song Cycle is very unique, and many will find it not only odd and strange, but also a little spooky. Parks’ is a very, very smart guy, perhaps a genius.

Speaking of odd, strange, and spooky, for a look at what Smile was going to be (a musical representation and celebration of Manifest Destiny), and why it would have been such a milestone album (beating Sgt. Pepper to the marketplace as was intended), listen to "Fall Breaks And Back To Winter (Woody Woodpecker Symphony)" on the Beach Boys’ Smiley Smile album. Now THAT is what I consider Progressive music. The Beach Boys Progressive?! No, Brian Wilson. Don’t believe it? Go ahead, listen to "FBABTW". It makes Progressive bands sound downright traditional!