What sends shivers down your spine when you play it on your system?

Agree with anything Ava Cassidy. When she sings "I'm getting ready..." Water works every time.

ZZ Top - Bluejean Blues 

Chet Baker Sings. It's amazing how much music heroin has given us and how much music it's taken from us.

Morten Lauridsen’s Lux Aeterna and O Magnum Mysterium.

There's a lot but this is something most of you guys probably don't know:

turn it up - then go ahead and buy the hi res version from a site:
https://www.youtube.com/watch?v=oOT2-OTebx0

Another one:

https://www.youtube.com/watch?v=rIrdTi7Bzt8

Buy all his albums, they are available on vinyl. Space is Only Noise is the best starting point.

@nitewulf  James Blake "Limit to your Love" is on most audiophile testing lists. Great song especially in its bass line. Nicolar Jaar has a few good tunes too, not quite al album-wide person for me though.