|
THE
GUTS OF A CHORD SHAPE
By huskybones
Intro
This article gets into chords a little deeper than just memorizing shapes.
I'll try to explain how to construct your own chord shapes and arpeggios.
Chord Theory
There are four basic chord types. Their names are major, minor, diminished,
and augmented. If the notes are played one at a time then it's called
an arpeggio. If they are played together then it's a chord.
Each of these chord types is made of three notes. These 3 note groups
are called triads. The notes in the triad have a certain relationship
to each other, which is described in terms of intervals. Each triad has
a root (1), a third, and a fifth. The root is the number one note for
identifying the chord. The third and fifth note further indentify the
chord and can be altered as you'll see later.
Take a look at Figure-A.
On the keyboard, the notes are laid out in half steps (chromatically)
with only one place to play each note, so let's start our interval discussion
there. The root note in all examples will be on A. The third interval
is made by playing two consecutive whole steps from the root. In Figure-A
you'll see that the first whole step goes from A, then skips A#, and lands
on B. A whole step just skips the chromatic note in between. The next
whole step starts on B, skip C, land on C#. Why C# and not D? Easy, the
interval we're playing is a "third" or three notes away from the root.
A-B-C is three notes, and in the scale the C is sharp. Likewise the next
interval, the fifth, is five notes away from the root. A-B-C#-D-E gives
you the name of the fifth note. You can build this by playing up the major
scale: A-whole step-B-whole step-C#-half step-D-whole step-E. The intervals
that we've laid out give us an A Major chord. If all this seems like a
lot of counting, don't worry because once you apply the notes to your
bass/guitar neck they quickly fall into some fairly regular patterns.
As I said there are four basic triads, so let's look at those:
Major - built with the 1-3-5 notes
Minor - uses 1-b3-5. We flat(b) the third by bringing it down a
half step.
Diminished - chords use a flat(b) third and a flat(b) fifth 1-b3-b5.
Augmented - uses a sharp fifth so it looks like 1-3-#5.
Locate these triads on the keyboard diagram (Figure-B) and take note of
the step or interval patterns.
Chords on the Bass or Guitar
In Figure-C I've diagrammed all four triads with A as the root and using
the bottom 2 guitar strings.
Guitar and Bass players can use this information. This gives you the arpeggio
and if you take the fifth note in each chord and move it to the D string,
you'll have a usable chord shape. In Figure-D, I've shown a standard bar
chord shape with all the modified notes (b3, b5, #5) that we've talked
about. If you want a little more of a challenge, get one of those books
with 5000 guitar chords (bass players can do this too!) and identify the
roots, thirds and fifths of the different shapes.
Chord Symbols
As a wrap-up, it's good to know how these chords are called out on charts.
Figure-E shows some common symbols. Hope this helps.
-take it easy
-hb
|
|