Declan Plummer offers regularly practice videos where he shows his approach to accompanying tunes. They usually last for about two hours, a long time watch. But worth it. He also shows the software he uses and gives a lot of insights. This time he uses the Reel "The Otter's Holt", a well known session favourite.
As audio he uses a video by Olivia Barret, who kindly gave him permission to use her videos. Maybe you want to have a look at her bandcamp site.
Declan's Top Score Music Academy can be found here
At 1hr 14sec he tries out some countermelodic parts
When watching the video I found a passage where he is reminded of the song "Hotel California" and shows some chords for the song. Here they are:
