Honestly, Chill Bill - Rob Stone.

It is in No way the best mix or recording but the treble, mids and bass are so clearly separated that its become my go to!

The bass will shake any system, headphones or speakers. A lot of brighter headphones will sound like they're about to break or super loose and boring.

The treble. Is it piercing your ears or does it fit in with the rest of the frequencies?

This song lets me discern which type of FR the headphone manufakturer is aiming for.