[Quiet Man Cometh]

I'd go so far as to say that Music has always been a part of poetry in the sense that you can link it to oral presentations of epic poems and stories long before any of the stuff we talk about here ever showed up on the horizon.

The "schools" we mention here are for the sake of discussion, but on the whole, poetry schools have been in existance probably as long as poetry itself as people have different ideas of what constitutes good or proper poetry, what is poetic in nature, and what is okay to write about. You can talk about things like the Cavalier Poets, which wrote more about courtly things and woman and such, Metaphysical poets of the 17th century who focused on extended metaphors and lofy topics. Religion and society were proper topics for poetry at one point. That shifted when the Sensibility and Romantic poets appeared to bring focus to the emotions and state of the individual person.

Not sure of music and poetry can be discussed together appart from the fact that music is poetry too, becuase the appeal of music can adn often comes from the sound of the intruments and the melody rather than the lyrics and word craft.