Which Living Room layout works better?

Hello! We are adding an upright piano into our living room and will rearrange / get new furniture to make it fit. Which layout would make more sense and why? (1) where the sofa has it's back against a wall or (2) where the sofa has it's back to the open entry stair railing? (3) Or a third option? Walls are 7 feet high and the living room window faces southwest. The furniture is to scale based on dimensions I found online and all are moveable. Thanks in advanced.

Option 1

Option 2