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| quote: | | As you said you can also add additional keys to an existing chord, e.g. the "7" (C E G B) or the "6" (C E G A). |
thats a Cmaj7. a C7 is C E G Bb
in all the time ive learnt music theory ive never had anyone explain why this is to me. they either dont know like me or they fob me off with bullshit.
if its a bit abstract ill explain it for the benefit of everyone here that doesnt know
a scale from C is C, D, E, F, G, A, B
which is 1st, 2nd, 3rd, 4th, 5th, 6th, 7th note from the root note C.
this is also known as a C major scale b/c it has no sharps or flats and its recommended you start learning scales and chords from this root note because of this.
you make a chord using a triad of notes. the 1st root note, augmented 3rd and perfect 5th.
hence. a C chord is C, E, G.
you can extend this by adding extra notes in harmony.
a C6 would be C, E, G and the 6th note of the scale A.
a C7 is annoying because for some reason the 7th is flattened. i dont know why but im hoping someone can finally explain this to me.
C7 = C, E, G, Bb
for 9ths, 11ths and 13ths you need to extend the scale because these chords span 2 octaves.
C, D, E, F, G, A, B,, C, D, E, F, G, A, B,
thats 14 notes.
therefore.
C9 = 1st, 3rd, 5th, 7th (careful), 9th
i.e. C, E, G, Bb, D
C11 = C, E, G, Bb, D, F
and C13 = C, E, G, Bb, D, A
you can simplify a large chord that spans more than 1 octave or use smaller chords that just add an extra note in harmony using add.
eg.
C6add9 is a C6 + 9th note.
i.e.
C6add9 = C, E, G, A + D
C7add13 would be a C7 + 13th note
i.e.
C7add13 = C, E, G, Bb, A
a C9add13 would be a C9 chord (C, E, G, Bb, D) + 13th (A)
yep you guessed it. its the same as a C13 chord. hence sometimes the confusion in music theory. its also why you wont find a C9add13 in a chord library more often than not. there will only be a listing for C13. or sometimes vice versa.
you can do the same for scales starting in anything other than C but remember to count up in whole notes (this will includes using sharps and flats).
to end this chord library shit once and for all you can make chords minor, major, suspended, diminutive by altering the original chord triad. there is no need to look up abstract chords in a chord dictionary and doing so is a waste of time because once you know this stuff you can figure out any chord in your head (but to do it on the fly as you are playing is difficult and requires a quick mind and good mental arithmetic. this is why improvized jazz can in many cases be truly amazing and awe inspiring. you can see how quick witted everyone has to be to keep up with the insane number of key changes).
to make C into a minor chord you flatten the augmented 3rd.
e.g.
C or C major = C, E, G
C minor = C Eb, G
to suspend a chord you can do it in 2 ways. either by sharpening the augmented note (sus4) or double flattening it (sus2)
e.g.
Csus4 = C, F, G
Csus2 = C, D, G
to diminish a chord you flatten the augmented and perfect note.
e.g.
Cdim = C, Eb, F#
you can chain these with 7ths and 11ths to make bigger chords and so forth so that a Cdim7 would = C, Eb, F#, Bb.
C7sus4 would = C, F, G, Bb
easy.
Last edited by Derivative on Dec-11-2004 at 22:27
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