Vocal Music The oldest genre of all, for what is humanity's oldest 'instrument'- the human voice. Anyone wishing to trace a stylistic history of classical music could do no better than to examine vocal music, for every composer worthy of the name wrote at least something which involves singing of some description.
Jazz has often been called “America's Classical music” but not everyone agrees. Although Jazz and Classical music are different in many ways, they do have common traits. Generally speaking, they're serious art forms that do not fall into the popular music category.