I am a beginner/intermediate level guitarist. From time to time I come up with a nice sounding chord progression. I have little knowledge of music theory, and I am struggling to make this chord sequence evolve into a bridge or a chorus. I see small pieces of answers to other questions but usually applied to a specific example.
Is there any way to, given a chord progression, methodically deduce a bridge and a chorus (probably multiple ways)? Are these methods depend on the scale we are in? The key? The starting chord progression?
I understand in music there is never a magical formula, but does theory provide an easy-to-use framework to start with?