hardcore is all about the dimished and augmented stuf

i know a lot of guys in hrdcore bands and i think its pure crap, but i can be pretty interesting at times

-----------------------------------4-5-7-----
----------------------------4-6-7-----
---------------------4-5-7----
--------------4-6-7----
-------5-6-8-------------
-5-7-8------------------

--------------------------------------7-9-11-----
------------------------------6-8-10-------
----------------------6-8-10-----------
---------------5-7-9--------
--------4-6-8----------
-3-5-7----

a lot of minor second diminished and augmented chords

---------------7--------
---------------7-----------
-----9--------10--------9---
-----8----------------10--
-----7---------------11------
-0-0---0-0-0-----00-----------

and the chromatic stuff

basically a bunch of noise at a really fast tempo with some odd time signatures thrown in once in a while to try and sound knowledgable of music theory should do it