Hi Noel,
I understood the first part and am OK with roman numernals and conventional chord symbols.

The second part? Well I dont understand what you mean or its relevence here (this is not meant ot be a rude remark simply a astatement of fact)

The third part re C2 versus C9 adds clarity thanks


Zero


Win 11 64, Asus Rog Strix z390 mobo, 64 gig RAM, 8700k