Music classes aren't really necessary at school. Children who really want to be musicians usually go to music schools. But sometimes it is a problem for their parents because their parents can't drive them to music schools because of their work. But my opinion is that music classes should be in schools for children. They can have an alternate choice, for example. Schools could have music classes, chess, and other activities. But I don't think that music classes should be necessary for children. I guess children should have a choice to either go to music classes or not.