Diminished as a 7b9 Chord (Jazz Guitar Lesson JA-029) How to play

In this guitar lesson we look at the jazz theory concept of using a diminished chord as a 7b9 chord. You should probably check out the jazz lesson series on the web site if you are getting stuck with the concepts here - and there are notes about this lesson there too - and I think it is easier to read some of this stuff than listen - helps you understand it faster, imho.

It's kind of a chord substitution (you'll often see it called that) but I think it is more just using a shape a different way, it's not really a substitution in the proper sense of the word... more on the web site about that!

Taught by Justin Sandercoe.

Full support at the justinguitar web site where you will find hundreds of lessons on a wide range of subjects, and all the scales and chords that you will ever need! There is a great forum too to get help, no matter what the problem.

And it is all totally free, no bull. No sample lessons, no memberships, no free ebook. Just tons of great lessons :)

To get help with this lesson (and for further info and tabs), find the Lesson ID in the video title (like ST-667 or whatever) and then look it up on the Lesson Index page of justinguitar.com

http://www.justinguitar.com

Have fun :)


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[joesatriani1200rulez]

Ok guys im gunna explain it better , the 7th in C major is Bdim now when he's showing the examples he plays a Bdim chord but also calls it Fdim , Ddim and G#dim now then how can it be Fdim G#dim or Ddim when that chord is the 7th in C and named Bdim so how can it be F G# or D

[JustinSandercoe]

@joesatriani1200rulez ok - when I say diminished in a jazz context I means A diminished 7th chord. It's a symetrical chord, made up of equal minor 3rd intervals - so any note is the root note.

The 7th chord in C major is a B dim triad or a B min 7 b5 chord - which is none of the other chords. We're outside the diatonic (of the key) chords here.

Most often in jazz if somebody says diminished they mean diminshed 7th, but I should have made myself clearer.

[morrissteven]

Pat Martino had a really cool essay on his website called the "Nature of the Guitar" that talked about this very concept (among other things). Incidentally, if you lower any one of the four notes in a diminished chord that lowerd note will become the root of the dominant 5-- which you showed at the beginning with your thumb on the root turning into your pinky on the (sharp) root transforming your dominant into a diminished. Thanks for this!

[JustinSandercoe]

@morrissteven yep, it's a cool trick that - I chat about that on my web page. :)

[joesatriani1200rulez]

dude no way in hell can it be F diminished cause thas the 7th in C major and comes aster the 6th , 6th is A and 7th is Bdiminished so how the hell can it be F diminished even larry carlton has a lesson on it , your wrong!

[JustinSandercoe]

@joesatriani1200rulez what on earth are you talking about?? At least try and present an argument that makes a little bit of sense please.

Maybe read the material on the web site and it might help you understand it.

[edgarmuzik]

You are the greatest teacher ever. Enough said.

[saijai587]

Thank you.

[kopi5896]

Good knowledge video about guitar.

[minami935]

Thank you for sharing.

[TenSax34]

if the diminished chord functions as many other chords, does that also mean that it could resolve to a chord, other than Cmaj7?

[dave422x]

great vid, justin! thanks!! very helpful! :-)

[psmtheman]

Thanks man! Your videos are the bomb! You got me playing in 5 seconds!

[missmusiclover3]

@JustinSandercoe thank you for uploading these videos :)

[leparditas]

you look fater.

you have sport!

its an order

[cdomler]

Justin-Superb lessons and beautifuly explained. Your chord lessons have really helped with my songwriting by giving me lots of new ideas. Its been fun creating music again and I really wanted to send a sincere thank you. Take care and keep these amazing lessons coming! - Charles