I am working on a harmonic analysis of "Reverie" by Debussy, and I am trying to find ways to analyze two things.
In the first image (mm. 24–35), the first few measures are in the key of B-flat Major, and it is a Imaj7 chord. Then there is a transition that leads to the key of C-Major. How would you analyze these chords with the C-sharps? Would you call it F+/G? And would you say that it is followed by G7sus2? Is there a good way of explaining the function of the augmented chord?
In the second image (mm. 48–58), the first three measures are in the key of F-Major. This then moves to the next section of the piece, which starts with the Dm and E chords. Would it be best to analyze the start of this section as the key of A harmonic minor? The first cadence here is a PAC in F-Major, and the second one is a PAC in E-Major. I don't know if there is a good way to analyze the function of these Dm and E chords.
If anyone has thoughts on ways to analyze these different chords, I'd love to hear them! Thanks in advance!