Forums > Music Theory > haromonizing guitar lines
Jump:
Forums > Music Theory > haromonizing guitar lines
Original message:71 days 10 hours 36 minutes ago
+ 3  
Member: mirco v
3
WebCred
Hi,

I'm trying to play both the main riff and the overdub (2nd voice) of black dog by led zep at the same time. The link shows the tab. I think it is correct this way.
What I don't understand is what is actually happening there harmony-wise. I can see the major 3rds on the cromatic bits, the 4th and so fourth, but:

is there an underlying concept or is the second guitar just playing off-notes for the sake of giving the riff a weird feeling?
Reply:69 days 5 hours 26 minutes ago
Member: Stephen Wayne
    0  
18
WebCred
I think the reason for the overdub is to introduce the solo and lead like in many Zeppelin songs.

Try a better tab I've seen 4 different versions.

Is that tab from Guitar Pro.
My music recommendations:
Reply:68 days 14 hours 26 minutes ago
Member: mirco v
    0  
3
WebCred
no, the overdub comes after the solo. it shifts the riff to a more complicated level, but I do not see what the logic behind this specific way of harmonizing is (choice of 3rds, 4th, etc).

the tab is guitar pro for the main riff (which is correct. have been playing it for ages). I have then added the overdub myself.
Reply:58 days 11 hours 56 minutes ago
Member: sallan
    + 1  
493
WebCred
Well,

Chords are harmonised by Roots-3rd's and 5ths

C-E-G=Cmaj

If I am harmonizing a line, by definition I will be utilizing the underpinning harmony. I don't have the music you are refering to in front of me, but a third is the strongest harmony you can choose, as it defines the quality of a chord as being major or minor.

5ths are very popluar for harmonizing rock lines because of the thickness of that interval (power chords are 5ths for example)

4ths are simply inverted 5ths.


-sallan
My music recommendations:
My gear recommendations:
  
I hate your music and/or band
Reply:68 days 8 hours 9 minutes ago
Member: Stephen Wayne
    0  
18
WebCred
then i dont know.

but how did you get the tab of guitar pro.
My music recommendations:
Reply:54 days 17 hours 9 minutes ago
Member: mirco v
    0  
3
WebCred
the tab is off of http://www.ultimate-guitar.com
as I said I took the main riff and added the harmonized part over it. the overdub is not harmonized in 3rds, at least not throughout.
Reply:45 days 6 hours 38 minutes ago
Member: sallan
    0  
493
WebCred
Ok,

I'm now looking at a link with some notes on it....it's all thirds (some enharmonic), 4ths (a few), 5ths (1), and 2 seconds.

Here we go interval by interval:

Bar 1:

E-A: P4
G-B:Maj3
G#-C:Dim4th (Sounds like Maj3rd)
A-C#:Maj3
E-A:P4

Bar 2:

C-D#: Aug2 (Sounds like mi3rd)
A-C#: Maj3
D-F#: Maj3
E-G: mi3

C-E: Maj3
D-F#:Maj3
C-E: Maj3

Bar 3:

A-C#: Maj3
A-C#: Maj3

C-D#: Aug2

A-C#: Maj3


etc.......maybe you can do bar 4 for yourself.

The overwhelming harmony here is A7 (one chord) for all four bars. I think what you are refering to as wierd perhaps are the harmonies on the passing tones? They are simply mirroing the overall contour of the idea.
My music recommendations:
My gear recommendations:
  
I hate your music and/or band
Reply:54 days 13 hours 1 minutes ago
Member: pickabass
    0  
290
WebCred
I've heard that page overdubbed a crapload of guitars on this. Who knows how many harmonies and effects were in there (other than him).
My gear recommendations:
  
MN8140409
Jump:
Contact us   |   Spread the word   |   Work with us   |   Provide Content
© 2008 Guitar.com, Inc. All rights reserved.
Guitar.com, Guitardotcom and the logo, are service marks of Guitar.com, LLC.