Mike Oldfield's - Far above the clouds is one of my favorites of the newer productions.
http://www.youtube.com/watch?v=5BSGdX7eNn4I guess they actually timed the show for the Big Ben ending.
I also liked the original Tubular Bells, being over 25 minutes long. Quite a cross between symphony and more typical instruments. And to think that the guy played all the instruments all by himself! Moonlight Shadow is quite well composed song also. It is full of all kinds of nuances.
There is a difference between pieces that don't have lyrics and actual songs. Those that don't have any lyrics require more concentration, so that you only listen to them. Or at least I find it more pleasing that way.
Mika