I’ve specified these armchairs in a number of houses as I think they’re super comfy and really well priced. They swivel - such a fun feature! I think two would be great. Parked, as mentioned, either side of the fireplace like they’re specifically for piano listening, gives the room more definition. It says, ‘hey, Im all about the tunes’ rather than, ‘well I’m not really sure what I am or who loves me’!! Dining rooms are a thing of the past - you have a huuuge kitchen - that’s where you’ll want to eat and entertain.
The tough love? The furniture in the living room all has to go. All of it. Nothing is salvageable. Harsh but fair.
Not so easy to furnish, given the architecture, as there is access to this room on three sides making it hard to configure the furniture in a practical sense. I’d suggest a three seater with its back to the hall, and two armchairs. it’s important to select furniture that doesn’t have big fat arms or deep backs because you want to maximise the seating space, not the furniture space. I know, that doesn’t make much sense written like that - I’ll explain in person.
MCM House offer a range called the Joe. it is really simple, relaxed and groovy and the covers are made of Belgian linen and are removable and washable - major bonus.