These aren't my favourites but the most significant.
O Fortuna, Carmina Burana. Much over played now but when I was a 5/6 year old in the early 80s my mum put it on and I simply found it terrifying- an early realisation of the power of music.
Hey Jude/ The Beatles. I was about 10 and had left a Beatles tape running whilst I had a bath. I walked back into my bedroom as this song started, and it just went straight to my heart.
Plant/ Page- Misty Mountain Hop at Knebworth 90. Never heard Led Zep, 13 years old in a crowd of 125000 people, that happened. Still coming down!
Smells Like Teen Spirit- Nirvana. Again much over played but at the time it was first rock song that felt like it totally belonged to me and my friends. Resulted in an ill advised undercut hair do.
Massive Attack- Safe From Harm. After years of an almost allergic reaction to synths and drum machines a record that swept all that to one side by being human, funky and electronic.