One weird question again. 7 and 9 chords over major and minor...

Allright, I lately started to think piano and guitar combination and... I dont again actually know how I put it, but how you forexample think or use some theory to determine, which 7th or 9th chord fit to specified chord which is major or minor.

Thanks in advance.
Empirism

Well, simply put, to turn any major chord into a seventh chord (dominant seventh), add the flatted seventh interval to the top. Take C Major; C - E - G. to get a dominant seventh, you would add an A flat. If you just want a diatonic seventh, than you would just add an A.

These lessons might help you out:

"Scales and Their Chords" by JazzMaverick

"CHORDS" by Bodom

"'The Art of Shredding' Part 3" by Guitarslinger124

Hope this helps you out!

Rock on!

Just a slight error with your post GuitarSlinger124

You would add a B flat not A flat to C-E-G to get a dominant seventh, and add a B to make it major seventh.

Did that answer the question Empirism? I really want to help you, but i don't completely understand your question! ^^

Good catch dude, I was in a rush when I was wrote that.

Yeah, thanks for replies. I didnt just meant to turn chords to 7th and 9th chords, but I actually meant how to use them over the chords.

Say like you have piano background which is say an A minor chord, I wish to play guitar 7th and 9th chords over that piano chord A minor, so I thought that is there any theory or how you determine to what 7th or 9th chord sound good over A minor chord forexample.

Thanks in advance.
Empirism

wouldnt you play a minor 7/9? dont take my word for it, i have no idea. i'd say look for common notes

ah, you mean like chord additioning? (i dont know if thats how its called in english, anyways) I recently read something about it, and I will tell you, but now I don't have time, I'm just on the way to go out, but i will tell you tomorrow!

well, generally speaking, you have to look for the nature of the chord. Say you are playing an Aminor chord on the piano, the an Amin7 chord would song good over it and an Amin9 as well. Check them out on the chord program on this site. I would need more information on the chord prog to say more.

Otherwise what I was referring to, is chord substitution. Gutarists often don't have so many strings and fingers to play complicated chords.

Say you are playing an Cmaj7 on the piano (C E G H) and i would play an Em7 arpeggio on the guitar (E G H D) those both chords would fuse together and create an!!! (drum whirls) ---Cmaj9 ^^
if you use the Cmaj7 with an Hm7 arpeggio you get an cmaj13. So this way, you can actually create the sound of certain chords with arpeggios. So what i suggest you do:
.Pick out a chord
.Look what notes are in it
.Look up the intervals/notes of the 7 or 9 chord you want to have
.arpeggiate them over your chord prog

You always have to look what the total sound is gonna come out as.
If you just want to play 7 or 9 chords its really simple. Look on the chord tool on this site, because on a minor chord you will play min7 or m9, on a maj chord you will play maj 7/maj9 and so on until you don't have enough fingers to make that chord sound anymore.

Haha, yeah cool. This was actually how I meant it. I think I had to study this a bit more still, but atleast I got the direction, thanks a lot all.

Cheers
Empirism

Basically you add it however you want - just try out new things, test new melodies and tempos to see how it works for you.

Side note...

I'm not sure if this will help you or not dude, but this lesson pretty much explains how to add arpeggios and licks into the scales you're playing.

Scales and Arpeggios Practice

Arpeggios