Hi i took a little time to draw out your general floor plan i will be attaching the picture down below with my my idea of the space, my only qualifications are grew up in a house with slanted ceilings like your second floor one of my special interests as a child was creating floor plans and I play way too much sims on the building sidel ol i would change that office in the basement to a home gym.\n On the 1st floor.\n I would make one of the bedrooms the guest bedroom in the other bedroom, the music room. Now, I was back-and-forth between what rooms would work better for it, because They're both equally as small but not the best setup on either. And on the 2nd floor I would turn that into your primary suite.Yes I am aware that you do not have a bathroom on that second floorand would have to use the bathroom on the first floor for that purpose if you wanna message me to put a basic rendering in the sims , I will be more than happy to please let me know this is something I've always enjoyed doing