OP, this is really a question for your Realtor as it is their business to ensure your house shows well and sells quickly, at or above your asking price. I'm betting the photographer was their idea. I wouldn't be surprised if that photographer has instructions from the Realtor to shoot around your gear.
As for playing music for your prospective buyers, what if they don't share your tastes in music? Ask your Realtor.
Personally, out of all the things you need to do to get your house ready to show such as painting, cleaning, decluttering, repairs, landscaping, etc. playing music for the buyers wouldn't make my list.
Good luck with the sale of your house!