It has to be prety basic but I never understood how it is conventionally explained. Usually a pop song has a fixed key like in: Cmajor: Verse: C-Am-F-G Bridge: Am-G, Am-G Chorus: F-G-Am How is ...
I have a song that I am using Roman numeral analysis for a song I have written. The first part based on D minor. The minor progression looks like this: I__ Isus __ VII Dm ...