theory question
dual tonality is when you have both the 3rd and the flatted 3rd present in a chord or progression (at least that's how i have always defined it)
it doesn't always work. if you were in D and started playing Dm chords that wouldn't sound especially right. but when you use the 7th scale degree like D in the key of E you can get away with it more. really you'll know when using dual tonality works and when it doesn't. it is something i would say to just get a feel for.
9 chords are generally single tonality. you are just adding the second at an octave up. that doesn't change what's going on at the third.
			
			
									
						
										
						it doesn't always work. if you were in D and started playing Dm chords that wouldn't sound especially right. but when you use the 7th scale degree like D in the key of E you can get away with it more. really you'll know when using dual tonality works and when it doesn't. it is something i would say to just get a feel for.
9 chords are generally single tonality. you are just adding the second at an octave up. that doesn't change what's going on at the third.
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#9 chords!! they have the 3rd and the raised 2nd (also known as the flat third)grock wrote:9 chords are generally single tonality. you are just adding the second at an octave up. that doesn't change what's going on at the third.
maybe you should pay more attention
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i understand some, others i have to check my notes 
			
			
									
						
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sorry but i'm not wrong, just a bad reader. sorry about that. yeah your definately right about #9. never really thought of it like in the same chord (i know some jazz but not too much). i was thinking more as having it in a chord progression like the question was asking about, rather than in an individual chord.fatjack wrote:as long as i prove grock wrong with his long-ass theory posts, then yes it is necessary!!Appsoldier wrote:do we really have to show off how much we know guys???
how would you even play a #9. i can't see a good spot to construct one. 9 chords are hard enough but i can't make the # stretch. any sugestions oh wise fatjack.
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C#9grock wrote:sorry but i'm not wrong, just a bad reader. sorry about that. yeah your definately right about #9. never really thought of it like in the same chord (i know some jazz but not too much). i was thinking more as having it in a chord progression like the question was asking about, rather than in an individual chord.fatjack wrote:as long as i prove grock wrong with his long-ass theory posts, then yes it is necessary!!Appsoldier wrote:do we really have to show off how much we know guys???
how would you even play a #9. i can't see a good spot to construct one. 9 chords are hard enough but i can't make the # stretch. any sugestions oh wise fatjack.
x3234x
hendrix used these all the time, and i wrote a song based upon it
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						i like that you almost got mad at me. haha. it's all good brother. anyways, i'll be trying out some #9 chords when i get home today.fatjack wrote:#9 chords!! they have the 3rd and the raised 2nd (also known as the flat third)grock wrote:9 chords are generally single tonality. you are just adding the second at an octave up. that doesn't change what's going on at the third.
maybe you should pay more attention
Well.. there is a thing called relative minors.  A relative minor is a minor scale that is int he same key as a major chord.  FOr example.  The relative minor of a C major scale is... tada A minor.  This you can go from C major to A Minor and it will not switch keys.  That is part of it. The other part is just sounding good.  I mean if you go from a major to minor it will work, and it lets you add dimentions to the song.  But the above is the actualy theory thing behind it.
			
			
									
						
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i think we know this alreadyAdrianJE wrote:Well.. there is a thing called relative minors. A relative minor is a minor scale that is int he same key as a major chord. FOr example. The relative minor of a C major scale is... tada A minor. This you can go from C major to A Minor and it will not switch keys. That is part of it. The other part is just sounding good. I mean if you go from a major to minor it will work, and it lets you add dimentions to the song. But the above is the actualy theory thing behind it.
and we weren't talking about the relative minors, we were tlaking about changing the major/minor tonality but using the same root, like being in A and then changing to Am, this completely changes the key
Changing from C to Am isn't much of a change
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i won't pretend to know what you're talking about in terms of the more complex theory, but in my experience key changes in songwriting are all about timing.  just put a new key where it fits, and slide, hammer, harmonic, or whatever to change. maybe even change tempo a little bit.  it's really not all that difficult.