Next stop DC.
I'm concentrating on the scene that evolved out of the DC punk harDCore scene & straight edge - that become emo/post-hardcore.
Characteristics - angular/discordant riffs, and personal/worthy or slightly arty/poetic lyrics.
Again, lots of great bands came out of this scene (shortlist):
Shudder to Think
Nation of Ulysses
Rites of Spring
Girls Against Boys