Mike Oldfield, Tubular Bells.
That song still gives me the creeps. In a
good way, mind you.
There was another version of it on the soundtrack where Oldfield would introduce new instruments into the mix, one by one. And he would announce them as they'd show up.
". . . an electric guitar. . . a slightly distorted electric guitar. . . " A big hit at the time, on late night FM radio, anyway. This was only possible, perhaps, in The Late Nineteen-Seventies.