Die Katze, die Brahms spielte

The cats have such distinct personalities, almost like human characters. I wonder what inspired the author to give them such depth?

There were lots of cozy details about the town and characters, but I was curious if the slower pace was intentional to build atmosphere.

The inclusion of Brahms and other classical references added a unique flavor to the story. I'm curious whether this theme was planned from the start or came later.