I found a cool site with resources for teaching Music History at home. My favorite is the Hallelujah Handel. The site says, "In 1750, George Frideric Handel gave musical history's greatest gift - his Messiah - to an orphanage in London. From that city's dark lanes comes Thomas, a boy who sings like an angel but will not speak. Finally the boy is healed with the help of Maestro Handel, Katarina (from Vivaldi's Ring Of Mystery) and the power and glory of the music. Includes more than two dozens excerpts of Handel's music, including the Sarabande in D minor, Water Music, Music for the Royal Fireworks, Arrival of the Queen of Sheba, Harp Concerto, oratorios, operas, and of course, Messiah."
http://www.design-your-homeschool.com/home-school-music-history.html
http://www.design-your-homeschool.com/home-school-music-history.html