My influences you've never heard of (pt. 4)

This is part four of the 'my influences you've never heard of' series. Part 3 is here.
Mike Oldfield was my first progressive influence - I was listening to him even before I started playing guitar. He was big enough in his time that his album 'Tubular Bells' gets filed in the popular section at cd stores, although I have no idea how it got that way; certainly I don't hear anything like this becoming popular now. While this sound isn't particularly what I want my music to sound like, listening to it certainly shaped my ideas about how to put parts together.