Chemically, some paints and preserves used in older times may affect the piece in the future, causing it to loose color or create an odd texture. It is also important to know art history for this reason (I’m sorry if this answer sucked)
Yes they are the right music names for the notes.
Lay down, cuddle in a blanket, close your eyes and BAM! You might fall asleep. maybe.
Just do/make what you love
Follow your heart and don’t let anyone tell you otherwise