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Diatonic Chord Function

Posted: Mon Dec 14, 2009 4:31 pm
by foal30
your guide to looking smarter when someone (invariably a guitarist :) ) is yelling somthing about what key is it.

remember this and jam night is a breeze

I - major, Ionian
II - minor, dorian
III - minor , phrygian
IV - major, lydian
V - dominant, mixolydian, 7 chord
VI - minor, Aoelian, natural minor
VII- minor, Locrian, half diminished

this is the function for each chord in any major key
we will get to minor keys another time
and blues tunes use 7 (dominant) chords mainly on all chords

it don't mater what note is the root or key, this is the way each chord functions.
once you have it memorized life becomes that much more beautiful

Re: Diatonic Chord Function

Posted: Mon Dec 14, 2009 4:34 pm
by foal30
we can also use this to familiarize ourselves or analyze a chord chart or a brand new tune.
the 7 chord can be helpful
as it makes us think , this is probably the V chord

here is common chord names and (hopefully) their function in the major key

I - maj7
II - m7
III - m7
IV - maj7 (#11)
V - 7
VI - m7
VII - m7(b5)