https://www.musical-u.com/learn/introduction-to-chord-progressions/
Behind countless unforgettable songs is a simple chord progression.
Understanding chord progressions is the key to understanding your favourite songs, and writing your own tunes. Let’s explore chords, how they’re strung together into progressions, what makes certain progressions “work”, and some tips and tricks for writing your own.
https://www.musical-u.com/learn/introduction-to-chord-progressions/