a genre of music that is much like hardcore. it has a different style though, where it will be heavy then have a melodic breakdown.Also they scream much more than hardcore. Newer hardcore screams to but people who only like oldschool hardcore say thats fake hardcore.SO,post-hardcore consists of poety like lyrics, melodic break downs, emo choruses, and usually a emo-scene crowd.
some post-hardcore bands
off the top of my head:
fear before the march of flames
scary kids scaring kids
older from autumn to ashes