Here’s a copyright infringement tale that goes a few layers deep, and one I think is a neat illustration of how similar elements can lead to completely different songs.
In 1972, singer-songwriter Albert Hammond released the song ‘The Air That I Breathe’ on his album It Never Rains in Southern California (the title track of which is his best-known hit). He wrote the song, which is embedded below as today’s SOTD, with Mike Hazelwood.