got another thing, not a chord just a bunch of dissonant intervals that i thought some of you guys could use (i dont know if its in common practice or not). i personally think that minor seconds are dissonant-sounding, so (in A) i stuck an A# onto it, sounded pretty dissonant. the problem is ive heard it used alot already by bands like cynic and meshuggah, so i decided to try and add something else. i stuck a B (major 2nd, another dissonant sounding interval) ontop of the root and the m2, so now its root A, m2 A# and M2 B.
oh and btw, both the m2 and the M2 are played one octave higher than the root note.
here is how i play it on tab:
e:
b:
g:4
d:8
a:
e:5
i was playing it on my classical guitar fingerstyle, but if you want to play with a pick with an electric /w reverb/drive etc, its easy enough to mute that A string.