Intro to Chord Construction

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Intro to Chord Construction; Music Theory
Topic Started: Jul 1 2006, 11:12 AM (293 Views)
username	Jul 1 2006, 11:12 AM Post #1
I'm special like that. Posts: 1,079 Group: Members Member #1 Joined: June 28, 2006 Gender: Male	Chord Construction: This is where the four triads from the last article come into play. Major - 1 3 5 Minor - 1 b3 5 Augmented - 1 3 #5 Diminished - 1 b3 b5 1.Extending- This is how you can make other chords that are different from triads. This section is just about extending the chords, altering them is in the next section. Here are some formulas for extended chords here. (Remember that all of these are based on the major scale) _7 (Dominant 7th): 1 3 5 b7 maj7 (Major 7th): 1 3 5 7 m7 (minor 7th) : 1 b3 5 b7 Those are the 3 most common extensions, and they can go even farther. Here are some examples: C7: C E G Bb Cmaj7: C E G B Cm7: C Eb G Bb Now you can extend those to 9, 11, and 13. You must have a 7th degree in the scale to call it _maj9, or _11, because the 7th tone is what 'supports' the further extensions. Without the 7th degree (b7, or 7) your 9, 11, or 13 degrees become an 'add chord'. Add chords will be explained more in depth in the next section. Here are the formulas: _9: 1 3 5 b7 9 _11: 1 3 5 b7 (9) 11 _13: 1 3 5 b7 (9) (11) 13 The numbers in brackets represent optional, or ghost, notes. Here are some more formulas using the ones above: _maj9 : 1 3 5 7 9 _maj11: 1 3 5 7 (9) 11 _maj13: 1 3 5 7 (9) (11) 13 _m9 : 1 b3 5 b7 9 _m11: 1 b3 5 b7 (9) 11 _m13: 1 b3 5 b7 (9) (11) 13 What about the diminished and augmented triads? Can you extend them too? Yes. _°7 (° = dim): 1 b3 b5 bb7. These notes are all a minor third away from each other, until you extend more. _°9 : 1 b3 b5 bb7 9 _°11: 1 b3 b5 bb7 (9) 11 _°13: 1 b3 b5 bb7 (9) (11) 13 _+7 (+ = aug): 1 3 #5 b7 _+9 : 1 3 #5 b7 9 _+11 : 1 3 #5 b7 (9) 11 _+13 : 1 3 #5 b7 (9) (11) 13 Remember, those are all in relation to the major scale, and the 9 is enharmonic to the 2, etc... They don’t have to be an octave higher, because you shouldn’t name a chord _7(add2) because the 2nd is better named as a 9, making _9. -irishdropkick



Morgan	May 29 2008, 07:42 PM Post #2
Dinkin' flicka. Posts: 1,950 Group: Staff Member #2 Joined: June 28, 2006 Gender: Male Name: Morgan Location: Sarasota, FL Last.fm: rockon1824	Congratulations, your article has been accepted! It will be added to the Music-Talk.org website in the next few days and 5 MT Points will be added to your account. Thank you!
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