Why don't we write a top 10 of the songs used in JJ2 levels of J2O with a topic we choose and our preferences?
Topics can be whatever: Space, Egypt, Best Level Usage, The Secret Files, Jazz 1, CTF Levels and so on.

I have got an example for a top 10:

J2O TOP 10:
"Outer Space"

1) Mechanism 8
2) Outside the Galaxy
3) Rocket Life
4) Razorback
5) Time Line '01
6) Facing the Evil
7) Alliance
8) Night Vision
9) Play it Loud
10) Space Debris

Obviously, topics and top 10s change according to the flavors of who writes here.