I believe the quintessential disco song was “Staying Alive” or “You Should Be Dancing” by the Bee Gees. As much as I disliked disco, both tunes had an irresistible groove. I’m a drummer and the drums were boring, but the tempo was just perfect for toe-tapping.
I was listening to the top hits of 1978 on the Casey Kasem replay this morning. It was interesting hearing some of those songs again. 43 years ago and I can remember what I was doing when those songs were on the radio.