I have been studying jazz harmony but I usually have some problems in understanding how certain rules are applied in compositions. For example, I have written down a lot of common chord progressions in jazz music, but modern composers seem to break these rules and often do what they want. In this case I propose a video game analysis.
I have analysed this composition, you can find a clear and detailed score with chords names and numbers.
my questions are in part referred to this and in part very general.
Beat 1: You can see I- IV (2nd inversion) I-: I know that in modern harmony inversions are "rare", but this clearly a classical harmony progression. What do you think? When it's possible to use inversions in modern harmony?
Beat 4:How do you explain bII-VI6 in beat 4?
Beat 7:Do you think that in beat 7 there is a modulation to Ab? If so, why is it so direct, without any pivot chord or similar?
Beat 17: VI - bVII. I have never seen this before, why did the composer used this?
Beat 21: VI - bVII-7 (3rd inversion). Classical or modern harmony? If so, why the 3rd inversion?
Beat 23: I- - II-7(3rd inversion). How do you explain this?
Any advice is welcome, thanks.