How does the poetry of catullus differ from the poetry of homer?

It doesn't. No one has escaped the modern era yet. If there are writers creating works which will eventually be considered postmodern to this particular epoch they have not been recognized yet.

A Ballad is the most enduring of all poetic forms. Ballads are the main vehicle for stories and songs, go back into the mists of prehistory, before English was even recognizably English: In Scarlet...

plays are written in much the same way, perhaps with a little more collaberation, but the main difference is that plays are meant to be acted out, on stage or otherwise. Example: Shakespeare plays...

No, poetry had been around way before Homer`s age. Homer was a bard(a singing poet) He was also a blind man.

Poetry differs from prose in it's conforming to metre, rhyme and music. Poetry is condensed and musical thought which technically can be fully developed, paraphrased and elongated into prose. And...