Had a revelation. Or rather, Kevin did. Turret room will become my study, and then the first floor room that was going to be a combined study / parlor gets to just be a parlor. With a baby grand piano (one came with the house, in slightly sad shape, but mostly playable and hopefully repairable) and a bit of pretty seating. And then the back room gets to be a proper family room, relaxed and comfy. So Victorian!
This is all contingent on the turret being approved, of course.