Top 3 songs to evaluate a system

Hi everyone,

So here is the question: what are your Top 3 music pieces to evaluate a system?

The songs should be complementary to cover a wider range of features, but not necessary. If you only listen to one type of music, it would make sense to only evaluate with this type.

Bonus: identify one good part of the piece where you pay extra attention because this is where the difference between systems is more visible.

I'll start:

Holly Cole Trio - Girl Talk - My Baby Just Cares For Me
Highlight: The vibrating cord at 1:59

MaMuse - All The Way - Glorious
Highlight - The clean guitar and the high drum beat that rythm the whole piece

Metallica - ... And Justice for All (Remastered) - One
Highlight - The first drums at 0:53, but the whole guitar as well


Doing this myself, I realize it's very hard to only pick 3!!