Ed Sheeran Defends Himself in Copyright Case, With His Guitar

The pop star strummed a four-chord progression from “Thinking Out Loud” in a Manhattan courtroom, seeking to separate his work from Marvin Gaye’s “Let’s Get It On.”

source https://www.nytimes.com/2023/04/27/arts/music/ed-sheeran-testifies-guitar-trial.html