Alt chords and Numbers

[Sebm89]

Hey guys.
Im new here, so i hope this is the right place to post this.
Im also pretty new to the world of jazz.

I tried to find out how to play an alt chord, (g alt etc)
But i cant find anyplace where i can see it.
Ive forgotten how the root, 2, 3,4 etc works.
So if anybody would like to tell what notes in a g alt etc.?

And if you would refresh my memory on how the system works with the number.
Like if i want to take a am11, or amadd11 how do i find the 11? cuz if i remeber right the 11 in a is g, but when i count i get a g flat.

hope u understand
Thanks alot

best regards Christoffer

[Dookychase]

When I learned this stuff, my teacher made me write out the major scales in all 12 keys. Of course you know the formula.

whole step, whole step, half step, whole step, whole step, whole step, half step.

C D E F G A B C D E F G A B C
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

So you see that the 9 and 11 are the same note. The 4 and 11 are the same, the 6 and 13 is the same. In my way of memorizing this, I'd just add 7 to any of the numbers in the first octave.

Adding 7 to the 2 equaled 9. So that way I would know what was the 9 or 11 or 13.

Does this make any sense? It works for me.

[gersdal]

You'll find some good information in these lessons:

iBreatheMusic.com - Harmony - Chords and Their Symbols Pt.1 by Chris Juergensen

iBreatheMusic.com - Harmony - Chords and Their Symbols Pt.2 by Chris Juergensen

[derek]

Alt chords are dominants that are altered. Sometimes the alteration is found in the melody and clues you into which alteration you should use. But basically you are altering either the 5th or 9th or both. So using C7 as the base chord, here are the possibilities.

C7b5
C7b9
C7#5
C7#9
C7b5b9
C7#5#9
C7#5b9
C7b5#9

I have heard some say that alt = specifically one of the above chords, but this is jazz, and we are free to alter them at will. In fact, most players I know are not playing that many stock dominant 7 chords, they extend or alter them all the time. Good luck with it.

[Sebm89]

Thanks guy. Great to get those old lessons refreshed.
Dont know how my mind lost such good infomation.

Thanks
Christoffer

[cosmic gumbo]

All you do is take a dom7 or min7 chord and keep adding 3rd scale tones to it. A 3rd above 7 is 9, 3rd above 9 is 11, 3rd above 11 is 13. Basic voice would need to have the 3rd, 7th and added tone of 9, 11, or 13.

[Reg]

All the info. above works... I would add that the notational use of #5 does not always apply. We use it because of " Standard Chord Symbol Notation", by Carl Brandt and Clinton Roemer from early 70's, it's not totally correct but Shur and most of the music programs for writing and in keyboards use it nowadays... Many times the chord symbol should read, b13 rather than #5. An example could be; you play II-7b5 to V7b9b13, would mean from Harmonic minor. For the last 20 years , most jazz players use a combination of both Harmonic and Molodic min. for their modal interchange use of altered chords. The term Alt. comes from using the 7th degree of molodic min.to construct a dom. chord, has b9,#9 b5 or (#4), and b13. Usually only one alt. 9th. Another way to come up with Alt. is to add chromatic alterations to, V7 chord going to Imaj.7 chord. Arrange the alterations and the root, 3rd and 7th of the V chord into a chord scale...pretty useless info. anyway looks at V chords built in 3rds from 5th degree of harmonic minor and 5th and 7th degrees of molodic minor. There are more ways to alter dominant chords, you can do any thing you want to any chord, but those are the altered chords usually used in jazz. You can build a Alt. dom. chord from Symmetrical Diminished scales, duel function dominant chord; 1,3,5,7,b9 #9,#11and 13. Also from 5th degree of harmonic maj., has only b9 and #9, rest of chord tones are natural. Used more in recent years. Sorry I have to head to gig...good luck Reg

[DanFersoo]

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