A great resource online to know more about Music exploration is found online. You can read blogs like : http://www.singerskitchen.com/ . You can read the story of an Opera singer who actually loves to cook. You can read about music exploration in her world with your homeschooler. You can also find alot of resources in Wilkes since Merle fest happens each Spring.
You can introduce your kids to Classics. You can use sites like : http://www.classicsforkids.com/index.asp . You can find free lesson plans around Beethoven. Check them out at : http://www.classicsforkids.com/teachers/lessonplans_beethoven.asp . You can listen to classics with your kids at : http://www.classicsforkids.com/music/ .
So take the time to read about the modern life of an Opera singer . Then let them explore Classics and hear it.Then get more resources at the Wilkes Public Library.