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

Ramones -- I Wanted Everything.  Zeppelin -- Dazed and Confused.  Clapton's guitar solo in Spoonful, the one on Cream's "Wheels of Fire" album.  Judith Nelson's performance of Henry Purcell's "Pursuing Beauty" in Volume 2 of Henry Purcell's Theatre Music on L'Oiseau-Lyre.

Side 2 of Procul Harum's Shine On Brightly - "In Held 'Twas In I"! A 17 - minute masterpiece suite! A&M LP.

Any recording of the last movement of Mahler's First Symphony! I particularly like Ozawa/BSO on the DG LP.

Any recording of the last movement of the Saint Saens Symphony 3. I like Munch/BSO on RCA LP and Barenboim/CSO on DG.