My wife Jil loves the 70's. She loves the music from the 70's because they remind her of when she was a young Orem girl and when life was so much simpler and full of less feedback.
Ambrosia is one such band (How Much I Feel, etc,). Her other faves from the 70's are Player, Seals & Crofts, Elton John, Lou Rawls and other one hit wonders that appear on 70's compilation CD's. I can't name them all but they are like a lazy, summer day in a park full of dandelions and bong water. So groovy.