(There was a great deal of Stan Rogers, whom I totally imagine as Siobhan's bardic forebearer.)
(And then there was a considerable amount of Glenn Gould. Because Canada and also because I always listen to Gould.)
(And then Kate introduced me to a couple new things from Canadian bands, including this, which is crazy moving.)
And there's one other, but it would be spoilery.
I have no idea what @carkneetoe listens to while she designs Kate's books, but I do know she's procuring a bugle for the photo shoot. I'm not sure if that will be easier than the sword from the first book.