I have to admit something. I’ve actually been leaving music and TV shows on for my dog since I got him as a puppy 10 years ago. I always feel terrible leaving him at home when I go out, and so I figured this was a way to help him feel a little less lonely. Usually, for TV it’s some kind of old-time show (he loves that stuff) and for music I’d just throw on a random playlist that Spotify suggested.
This progression very eloquently illustrates one of the most basic functionalities of western tonal music — the subdominant (IV chord – G), moving to the dominant (V chord – A), and resolving to the tonic (I chord – D). This is a sound that transcends all genre barriers and ties tons of music together. We can find a very rich body of work in this sound throughout history, from classical music, to much folk music, to contemporary pop hits of each generation.