And so I'm back. Yes I did do some music, do I didn't finish a section. I'm starting to feel unsure about this section now. For a start it's pretty like section 3.2.1, including using the same chord sequence for some of it. It may be I'm just not "feeling it" today. I mean I did some of it with some nice (I think) piano soloing, and now I'm not sure any more.
I guess I'd better come back to it another day, time to stop now anyway.