Only two tracks to test your system, forever!

If you could only use two tracks/songs for the rest of your life whenever you wanted to test a change to your system, what would they be?


(TRT) Testosterone Replacement Therapy 

L.A. Guns - I’m Addicted 

The Police - Murder by Numbers 

deadhead1000, your reply caused me to find Sweet Baby James/Fire and Rain on the shelf; I had forgotten how wonderful that entire album is, thank you!