The nice thing about homeschooling, is that you do not have to stay at home to learn new things. You can play with your cousin and talk with your friends while writing your journal. You can listen to live band music while working on math if you want to also. You can dress up and help put on a mini show for your grandparents’ friends.
But usually, it is more fun just to play with your cousin while listening to your Grandfather play his french horn during a band concert. And count it as child development with music appreciation.