# Basic Theory of a Chord in as Short and Simple as possible

Discussion in 'Beginner's Q&A Forum' started by Vader, Nov 1, 2011.

?

100.0%
2. ### Not Useful

0 vote(s)
0.0%

Ok so here goes
BASIC THEORY OF A CHORD
in as short and as simple as possible with references to intervals and counting notes

i've written this in as simple language as possible in hopes that even a beginner would be able to understand it

Chord theory:
Lets take the C Major scale for example
C D E F G A B C (lets say our C is at 100 Hz)
Since its a major scale all notes are referenced to as diatonic notes
D=M2 (major second)
E=M3 (major third)
and so on
however F G and high C (200Hz) will be denoted by P4 P5 and P8 called perfect notes cause they do not require a third note to complete the chord
now comes the fun part

to make a dyad all you have to do is play the root note C (since its the scale of C) and any ONE of these three notes
your standard power chords like A5 C5 are made using this.. they are just the root note with the P5 in that scale

for this you will have to know your notes

Counting notes:
when I move from C to C# its called a half step or semi tone and denoted by h (one fret on the guitar)
and from C to D is called wholetone or wholestep (two frets on the guitar)
[quarter is what we drink ]

in music there is no E# or B# so distance between E and F or B and C would be a halfstep whereas for any other diatonic note it would be a wholestep(w)

There are four types of triads
Major
Minor
Diminished
Augmented

So the following formulae apply to make a chord

Maj- 1+2w+1.5w
So your CMaj chord would have the notes C,(C+2w),(C+3.5w)
Which is C E G

Min- 1+1.5w+2w
Therefore Cm will have the notes C D# G

Dim- 1+1.5w+1.5w
Therefore Cdim will have the notes C D# F#

Aug- 1+2w+2w
Therefore Caug will have the notes C E G#

Now you can play power,major,minor,aug and diminished chords without having to refer a chord chart!

raga2303 likes this.
2. ### komal29New Member

what an awsome lesson..i almost understood..though not entirely..i will read it again n again till i understand..am a bit detail oriented but always start off with summaries like this to understand something..summaries ignites questions in me..thats my brains wierd way of thinking/learning..he he he

anyways thanks a lot..
Komal

3. ### raga2303Member

Cool.. Appreciate the hard work.. I will add reps for you..

To all...

you can pm me to ask your doubts (but preferably just reply to this thread cause i dont check my msgs too often)

you are also welcome to post anything here that i may have missed out about basic chord theory

Keep Rocking

Like I said …you are more than welcome to ask questions

Anytime
I didnt overload the thread with details cause it would cause a lot of confusion for beginners
And this thread was requested by a person just starting guitar so I didn’t wanna put him off

Cheers dude
(even though a don’t know what a rep is or does )

Feedback is appreciated too
I made it easier for you'll to give feedback via the poll if you dont wish to post
will give me a reference point for any future lessond

okey dokey

9. ### Sumanovo razorNew Member

well let my try hope you get this...

a chord is nothing but playing more than 1 note together...

there are 3 types of chords diads,triads and 4 note chord...for guitar for piano there are 7note chords also...

For chords you need to have a strong scale theory

...
Here's a formula for major scales
wwhwwwh
where
w=whole note
h=half note.
(a to b= whole note)
(a to a#=half note)
(b to c#=whole note coz 'c' doesnt have a flat)(in whole note there should be a gap of 1 note whereas in half note there should nt be any gap between the notes.,as in the note nxt to it) and so on and so forth
for eg if you want to know the chord 'c major'
then first write the 'c' major scale notes
first start writing the scale with that particular note only .over here 'c'
by applying the formula
wwhwwwh
c- d-e- f-g-a- b|c
1-2-3-4-5-6-7 |c

c to c is one octave
here according to the formula

w(c-d)
w(d-e)
h(e-f)
w(f-g)
w(g-a)
w(a-b)
h(b-c)

so take the alternate notes from the 'c major scale i.e (c-e-g)(1-3-5) this is nothing bt c major chord (triad or 3 note chord) if a add the 6 note i.e(c-e-g-a)it will become cmaj6 or c major 6th chord,...
same with all the other notes

coming to minor scales
same as major scale just flattened the 3 rd ,6th and 7th note
i.e
c-d-eb-f-gb-a-Bb-|c
then cminor would be
c-eb-gb,...and cmin6 c-eb-gb-a

10. ### komal29New Member

this thread is super-teaching! [my own word! ]..

11. ### Sumanovo razorNew Member

hey komal ...m sorry 4 the layla thread...i will be posting some comments after completing my 2nd internal exams ...for the mean time ...how to play a 7 note chord....its too simple ...just play a 3 note with one hand and a 4 note with the other...but then the notes should match otherwise...it wont be consider a 7 note ...

12. ### Sumanovo razorNew Member

half diminish is a 3note chord whereas full diminish is a 4 note ...there are advance chords also...but they are not used in regular songs...you will need them in playing jazz....for eg Bm7b5...which is called Bminor 7 flat 5...this means in Bminor7 chord flat the 5th note....i know its bit tricky ...will explain you later...oye you wont get this info's everywhere...i gotta pay me fees

13. ### komal29New Member

dude..how many sorry r u r gonna keep saying?..u dont know how mean are some ppl to others just coz this is an open forum not worrying about looking bad..[read some replies to my posts to know]..frankly am still trying to figure out to what exactly are u asking sorry for

Dude i cant believe you actually took the time to do this
*Double thumbs up*

why not play all four with the same hand
Pinky Rules!!!

16. ### Sumanovo razorNew Member

ya you can play all four with the same hand.....but atmost you can play a 7 note chord...that is playing 7 notes together in a chord...you may say that if you hold a four note with one hand and another four note with the other..you will land up to 8 note chord...but thats not so..some of the notes will be in unison or in octaves so you cant consider the repeated note......ya vader it was difficult to write so much...moreover m using my old n73 mobile and browsing thru mobile only...and after writing 4 to 5 pages..(1 page=160 character) ...it becomes too slow..i complete typing a whole sentence and i see nothing is displayed in the screen and suddenly after 5seconds the typed characters get displayed on the screen at once ...hehe

i didnt really get this
i've never come across chords requiring 7 notes
its normally four notes with two notes repeated
then again thats why i called it basic chord theory
also i dont really play blues or jazz that much

I appreciate this

Basic Theory of a Chord II

Before i Continue...
I will be refering to Intervals in music
Now that you know how to count notes
all you need to do is know this chart

Semitones Interval
-----------------------
0 Unison
1 flat 2nd
2 2nd
3 minor 3rd
4 major 3rd
5 perfect 4th
6 flat 5th (diminished 5th or augmented 4th)
7 perfect 5th
8 minor 6th (or sharp 5th/augmented 5th)
9 major 6th
10 minor 7th (flat 7th)
11 major 7th
12 octave
13 flat 9th
14 9th
15 sharp 9th/minor 10th (just minor 3rd one octave higher)
16 major 10th (just major 3rd one octave higher)
17 11th
18 augmented 11th
19 perfect 12th (octave above perfect 5th)
20 flat 13th
21 13th

Recap:
Maj- 1+2w+1.5w
So your CMaj chord would have the notes C,(C+2w),(C+3.5w)
Which is C E G

Therefore in Intervals it would be 1-3-5
As simple as that!!!

Note:
The minor third creates a minor chord whereas major third creates major chord
Now moving on

Suspended Chords:

Ok
Now you know how to make a major/minor/aug/dim chord...
But what do you do if you have to play Dsus2? or Asus4?

The thing to remember here is that the 3rd has been replaced/suspended in your normal formula 1-3-5.

This note is the 4th for a Xsus4 chord
or a 2nd for a Xsus2 chord

Note: With suspended triads you have no 3rd, so the chord is neither major nor
minor.

A suspended 4th triad would be : 1-4-5

A suspended 2nd triad would be : 1-2-5

So take A Chord as our example:

A Major : 1-3-5 = A C# E

A minor : 1-b3-5 = A C E

Asus4 : 1-4-5 = A D E

Asus2 : 1-2-5 = A B E

Congratulations!
you have now learnt how to create major/minor/dim/aug/sus2/sus4 chords on your own!

:beer:

20. ### Sumanovo razorNew Member

hey people ...i made a mistake...refer to my previous post...for Cminor scales it b3rd, b6th, b7th(flattened notes from the major scale)i.e

C-D-Eb-F-G-Ab-Bb|C

and the chord tones would be C-Eb-G...and not C-Eb-Gb.....btw no one was there to point out my mistake...(maybe no one was interested to read that sh** which i wrote...