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

The accapella section Heart Like a Wheel sung by McGarrigle Sisters.

@mapman 
i know the Iona Brown with Sir Neville Marriner (the “first” one) recording of “The Lark Ascending” on Argo the best. Maybe it was love at first sight, but that’s a great performance. I like the “Fantasia on a Theme By Thomas Tallis”, same recoding, even better. 

Arvo Part: “Tabula Rasa: I. Ludus”. There is a portion towards the end where there is a cacophony of bells that sound like Shinto temple bells or something. I love the whole piece, but that is a very holy crap  moment.

Plainsong, Like Cockatoos and This Twilight Garden (all by The Cure) and Dazzle by Siouxsie and the Banshees.  All very atmospheric. 

Casta Diva - Maria Callas

I don't know what it means (nor want to know), it just sounds other worldly.