Listening to Gold's retro-chart show: it's Sept 1978 when "3 Times a Lady" was #1. And I'm hearing Renaissance -- anyone else remember them besides me? -- doing a song called "Northern Lights" that almost sounds like one of ABBA's ballads. New to me and quite pretty.
Renaissance were huge on NYC prog-FM radio in the mid-'70s, and all-but-forgotten now.