Let’s Get It On was co-written by Marvin Gaye and Ed Townsend in 1973,whilst Thinking Out Loud was co-written by Ed Sheeran and Amy Wadge in 2015. The heir to Ed Townsend’s estate sued Ed Sheeran on the basis that his song constituted a copyright infringement, because it was substantially similar to the 1973 song–the structural placement and harmonies were said to be similar. [ read more ]