#1
So I'm starting to read up on some Jazz to brush up my theory and chord formation a bit. On one of the songs I have (got it from school), it's asking for a G+7b9. I'm wondering what difference the plus makes from a regular G7b9 chord.

Like, I know a G7 is G B D F, so from there, G7b9 would be G Ab B D F.

Am I correct so far? But then, how does the "+" change the chord?

Thanks guys!
Quote by sporkman7
so what wierd things can u guys do? no not like laser vision or meat vision or something, but like random stuff that usually comes in handy
#2
+ means augmented, thus altering the perfect fifth to an augmented fifth.
Only play what you hear. If you don’t hear anything, don’t play anything.
-Chick Corea
#3
Quote by food1010
+ means augmented, thus altering the perfect fifth to an augmented fifth.

So the notes for the G+7b9 would be G Ab B Eb F?
Quote by sporkman7
so what wierd things can u guys do? no not like laser vision or meat vision or something, but like random stuff that usually comes in handy
#4
Quote by nedthehead
So the notes for the G+7b9 would be G Ab B Eb F?
Yes, except it would be notated G B D# F Ab.

Think of this as a derivation of the major scale.
You have these notes:
G A B C D E F# G A, etc.
For a G major, you take the 1, 3, and 5:
[G] A C [D] E F# G A, etc.
For a G7 you take the 1, 3, 5 and b7:
[G] A C [D] E [F] G A, etc.
G7b9 (recall that it's not the b2, because it's beyond the octave):
[G] A C [D] E [F] G [Ab], etc.
G+7b9:
[G] A C [D#] E [F] G [Ab], etc.
Only play what you hear. If you don’t hear anything, don’t play anything.
-Chick Corea
Last edited by food1010 at Oct 7, 2009,
#5
Ah, gotcha. Wasn't thinking in terms of the major scale! Thanks a lot
Quote by sporkman7
so what wierd things can u guys do? no not like laser vision or meat vision or something, but like random stuff that usually comes in handy