I wouldn't necessarily call my tracks "audiophile", but they are the tracks I use to choose equipment. As follows:
1. "In Time" by the Black Keys
I use it to get a feel for soundstage and detail. There's a lot of details and instruments going on in the song, and it does a very good job of hi lighting short comings in soundstage.
2. "Fall at your feet" by Crowed House
It's a very smooth song, and if a piece of equipment is colouring a particular tone, it will show up in this song.
3. "Lose Yourself to Dance" by Daft Punk
I use this for bass. It's a bass heavy track, and if the bass is too muddy or bloated it will drown out the rest of the song.
4. "Shy Guy" by Diana King
Opposite. I use this for treble. If the gear is too bright, this song will hurt your ears.
5. "What's the Difference?" by Dr Dre
I don't use this song for anything specific, but it can highlight too much bass.
6. "One Day Like This" by Elbow
This song has so many tracks it's unreal. Good kit will make this song come alive and surround you with musicality. Poor equipment will flatten it. It's also a good measure of soundstage.
7. "Outside" by Foo Fighters
Purely to see how the gear handles rock.
8. "Concetro No 1 in E Major" by Vivaldi
Purely to see how the gear handles classical music
9. "I am Electric" by Heaven's Basement
This album, whilst being one of my favourites, can be hard to listen to. The sound is very bright and needs good kit.
10. "New Sensation" by INXS
A test of over produced pop music!
11. "Two Minutes to Midnight" by Iron Maiden
This is a test of rock, but also a great test of mid range and how a fast gear can be.
12. "Closer" by Kings of Leon
Soundstage and a test of midrange
13. "Brand New Day" by Kodaline
Soundstage mainly. But also overly bright gear will destroy this song.
14. "Swim" by Madonna
Detail, soundstage and bass. A lovely song produced by William Orbit, with layer upon layer and beautiful texture. On the right gear you can close your eyes and drift.
15. "Gone in the morning" by Newton Faulkner
Detail, soundstage, mid range...
16. "Take the Power Back" by Rage Against the Machine
Bass and mid bass measurement mainly. The kick drum makes this song and if it's not there it can sound a bit bright.
15. "Give it Away" by Red Hot Chilli Peppers
Because I want to see how the gear handles Flea.
16. "Come on Over" by Royal Blood
The bass can be very muddy on this song. Good test.
17. "Take Back the City" by Snow Patrol
See how it handles acoustic guitar
18. "Something Good Can Work" by 2 Door Cinema Club
Modern poppy electronica. A good test of any gear. Tends to have a warm sound to it.
19. "Life is Beautiful" by Vega 4.
Because it was the first dance at my wedding OK?
That's it! :)