The Most Beautiful Song of The RnR era?


I'm about to spend a week with my father in law, who loves music but insists that nothing of interest (that is, beautiful) has been produced since WWII. In order to get a little music in, I thought I'd burn a compilation cd that might not offend his sensibilities too deeply. "God Only Knows", "Hello, It's Me", "Truly, Madly, Deeply", "Something", and "Bee's Wing" are in. Many others are under conssideration. Your additional suggestions would be appreciated.
martykl
Not RnR, I believe, but Roberta Flack's "First Time, Ever I Saw Your Face," is one of the few pop melodies that I store with my Classical titles.
Hendrix- Little Wing, Angel
Blind Faith- In the Presence of the Lord
Thin Lizzy- Cowboy Song
Chicago- If You Leave Me Now
Eric Clapton- Wonderful Tonight
Velvet Underground- Pale Blue Eyes