The title comes from the musical term "arpeggio" where a chord is played by the individual notes that make it up, like a harp. The individual strings of the peacock feather tail of the fish reminded me of a harp. The title also references the Radiohead song which also adds "Weird Fish", which I guess is also fitting. As far as the origins of the piece, it's one of those ideas that just swam into my head (pun intended) and I went with it. Whenever I can see a creature clearly in my head, I know it's something I need to make whether there's a backstory or not.