Veil of Maya
Jazzcore music is characterized by elements of a song, ie usually contain metal breakdowns, jazz chords, and hardcore riffs and leads, or possibly parts that combine all of these and more.
Typical instruments used in Jazzcore are:
Drums(with double bass drumming)
Potentially keyboards or synth
Guitars in Jazzcore usually tuned their strings down using varied tunings. While a metal guitarist might tune his strings in drop B tuning, a jazzcore guitarist might differ from that tuning (ie, B-F#-B-E-G#A, or A-F#-B-E-G#-A)
While metal guitarists may also use drop C tuning, a jazzcore guitarist may vary from this tuning by using cello tuning (C-G-D-A-B-E) This is done to make playing jazz chords and metal riffs at the same time a little bit easier.
Its fucking Jazzcore!!!