Favorite song to demo or test drive speakers?


What is the first song you played when you listened to your new system for the 1st time? 
mhewitt
So many great choices here. I'll add one.
Boz Scaggs- "Thanks to you" from "Dig". Preferably on vinyl😎😎
Dire Straits -- You and Your Friend (the opening originally sold me on my KEF 104/2)
Eric Claption - Old Love (24 Nights)Pieces of a Dream - I Feel Like Signin'St Paul & the Broken Bones - I'm Torn UpRobert Plant & the Strange Sensation - Shine It All AroundBobby Lyle - Exotic LoveAlvin Lee & Ten Years After - Help MeAlex Skolnick Trio- UnboundAcoustic Alchemy - Against the Grain


Jan Hammer - "Darkness/Earth in Search of a Sun", and the whole album “First Seven Days”
Steely Dan:  “West of Hollywood”

Bach:  any good recording of “Toccata and Feuge in D Minor”