I saw ELP once (Tarkus tour)--am now on the negative side, though.

Softer 60's music isn't my usual fare but here are a few songs that I still like today:

The Cowsills, "The Rain, the Park, and Other Things"

Helen Reddy, "No Way to Treat a Lady"

The Carpenters, "Guitar Man" (heck, almost all of their songs)

B. J. Thomas, "Don't Worry Baby"