Okay, so just throwing this out there. Oda Nobunaga is like Syd Barrett: the eccentric, art-loving genius with the vision of what is to come. He doesn't make it all the way there, though; he's felled by the enemy within (Akechi Mitshide).

His successor is Roger Waters, who therefore corresponds to Toyotomi Hideyoshi. Waters/Hideyoshi takes what Barrett/Nobunaga left behind and develops it into an overwhelming success. And, like Hideyoshi, Waters is now remembered for the severity and iron-glovedness of his rule. The Odawara Siege corresponds to The Wall.

Now, here is where the problem arises: Hideyoshi's successor is Tokugawa Ieyasu, who founded the Tokugawa Shogunate and kicked off the Edo period. David Gilmour's Pink Floyd — A Momentary Lapse of Reason and The Division Bell — need to somehow correspond to two and a half centuries of peace, prosperity, and unparalleled artistic achievements. I do not see how this is possible.

I'm also not sure whether Sen no Rikyū is Nick Mason or Richard Wright.