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  #1  
Old 2005-11-20, 17:19
Schizoid's Avatar
Schizoid Schizoid is offline
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Sus2 or Sus4?

I've realized Sus2 chords are also Sus4 chords starting at different root notes in the chord. For example Sus4 interval are 1,4,5. Take Fsus4 it contains the notes F(1), A#(4), C(5), If you take the root at A# it becomes a Sus2 chord. It contains A#(1),C(2),F(5). Both these chord contain the same exact notes but start at different root. Therefore a Sus4 chord is a Sus2 chord making the 4 (A#) in the Sus4 chord as the root.
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  #2  
Old 2005-11-22, 16:25
lizardly lizardly is offline
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That's why I prefer to work with one or the other....

Manx
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  #3  
Old 2005-11-22, 19:03
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davie_gravy davie_gravy is offline
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So,

It's just an inversion. Cool.
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  #4  
Old 2005-11-23, 00:45
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never realized that, thanks.
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  #5  
Old 2005-11-28, 05:56
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Schizoid Schizoid is offline
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Another thing I realized is that 5 chords (1,5(7 half steps)) are Perfect fourth chords with no 5. For example F5 contains the notes (1(F), 5(C)). But if you take the note of the chord as C it becomes a perfect fourth with no 5 (1(C),P4(F)). I realized this when playing different variatins of 5 chords and some harmonzation parts of Cradle of Filth. When your harmonizing 5 your harmonizing a fourth at the same time.
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  #6  
Old 2006-01-12, 14:39
oRg oRg is offline
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Yup, it's where the phrase "a 4th up is a 5th down" comes from. You can do this with any interval really. Here's a small table...
Code:
m2 7 2 m7 m3 6 3 m6 P4 P5 d5(A4) A4(d5) P5 P4 m6 3 6 m3 m7 2 7 m2

The first column is before inversion, and the second is after inversion. There's another easy way to figure out intervals as well. Like if I ask someone what's a m7 above C, you could think of it this way. A m7 above C is like a 2 below C but an octave higher. Two-steps below C is a Bb(A#).
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  #7  
Old 2006-01-16, 13:26
jackson#1 jackson#1 is offline
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thats called an inversion
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  #8  
Old 2006-01-17, 14:07
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Unanything Unanything is offline
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I thought sus2's were like this:

G[0
D[3
A[3
E[1

an add9 with the root's octave.
And sus4's were just perfect 4th dyads or something similar.

Please correct me, if that's wrong.
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  #9  
Old 2006-01-19, 22:31
tchambliss tchambliss is offline
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Quote:
Originally Posted by Schizoid
I've realized Sus2 chords are also Sus4 chords starting at different root notes in the chord. For example Sus4 interval are 1,4,5. Take Fsus4 it contains the notes F(1), A#(4), C(5), If you take the root at A# it becomes a Sus2 chord. It contains A#(1),C(2),F(5). Both these chord contain the same exact notes but start at different root. Therefore a Sus4 chord is a Sus2 chord making the 4 (A#) in the Sus4 chord as the root.


C wouldn't be the second of A# it would theorhetically be the third, you would have to sharpen the B for it to be the second. Note names determine much with chords. . . F major scale contains no A#'s, so an F Sus4 chord, would be F(1)-Bb(4)-C(5), the inversion would become Bb(1)-C(2)-F(5). Sorry kind of late for me to post this and I didn't read far enough to see if someone else already had. Key Signature of F contains one flat though and that is basic theory. Notice the lydian mode which is formed on F in the key of C major contains one naturally sharped interval being the B. So to formulate a major on F you would flatten the naturally augmented interval so that you could create a perfect fourth, rather than an augmented fourth.

Note: All inversion add up to the number 9, Perfects maintain perfection. Major become minor, minor becomes Major, Augmented becomes diminished and diminished becomes Augmented. FE: the inversion of a M2 is a m7, the inversion of a P4 is a P5, the inversion of a M3 is a m6 the inversion of an Octave is a unison(P8 is a P1), that should get you on the right track although there was a post awhile back on inversion and intervals explaining this before.
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Last edited by tchambliss : 2006-01-19 at 22:34.
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