Polysynth plays the main melody, backed up by Grand Piano XXL on chords. The Polysynth settings are Big Notch Bro and Copernicus. No, I don't know what they mean either. There's a French violin in there too, and some orchestral instruments.
You can find more of my music on Spotify, Apple Music, YouTube Music and other sites by searching for 'Jon Jermey', 'Thirty-Four South' or 'One-Five-One East'.