i think i tried to give them a go back in school but they had a massive discography i started off with i can hear the heart beating, was bored by it so i never looked into anything else
Tubular Bells by Mike Oldfield. Pretty good symphonic prog album, starts to drag on towards the end but the first 10-15 minutes are sick. Thought I recognised it from something, turns out the first part was used in the exorcist and sounds a lot like L's theme from death note.