Emerson, Lake, and Palmer - Lucky Man
https://www.youtube.com/watch?v=3ds55ii0wqc
Studio version of Lucky Man. I usually like to post live versions of songs, but the live versions are just Greg Lake and his guitar. The studio version has Keith Emerson on the MOOG synthesizer using it for the first time on a recording.
The song was written by Lake years earlier when he was 12 years old, and added to the album at the last minute as there was still room/time on the album. Palmer humored him on the drums, but Emerson thought it was stupid and went to the pub.
When Emerson returned and heard the song with the numerous vocal and guitar tracks added he thought it was okay. And said maybe he could try the synthesizer at the end. That was his first take that is on the record. He wanted to rehearse and make it better, but the producer said no.