That's what musical "genres" are all about,classifying sound patterns by similarities.

Chords are the arguably the foundation of a song which like a house can be built in many different ways, with lots of variations and colors added by the musicians, performers and song writers.

Some "house" designs sell better than others so that's what the builders try to emulate.
When it comes to the great ones, the devil is in the details.
That's why out of so many renditions of the same song, one will usually become "the standard" (Sinatra's "My Way" comes to mind)

Here's where the internet and Indi publishing really shines as it offers us music built outside the box, and good or bad, gives us a choice over standard radio playlists.

We definitely have to thank PG Music for helping in this regard.