ABOUT   PENTATONIC   SCALES


Pentatonic ("penta" meaning 5) scales can have only 5 unique notes.
The 5 notes will be a subset of notes from points within each of the scales, 
Major, Diminished, etc., mentioned so far.

NOTE: These scales are only smaller collections of notes from the larger scale.
They are NOT unique scales in any true sense.
Think of them as shortened, or partial modes.

The common Minor (or "Blues/Rock") Pentatonic scale is a very popular form,
with the following set of intervals:


               1         b3        4      5         b7        8(1)...

(Example keys:)

     D:        D          F        G      A          C         (D)

     E:        E          G        A      B          D         (E)

     A:        A          C        D      E          G         (A)


You may notice there are no sharps(#), or flats(b) in the examples above!
That's because these particular pentatonic scales are all excerpts from the
key of C Major - at the 2nd(D), 3rd(E), and 6th(A) modes...

This becomes more obvious when you shift these scales to their relative
positions in a modal context:

...............|....|....|....|....|....|....|....|....|....|....|....|....|....|....|... 
Key of C:      C    D    E    F    G    A    B   (C    D    E    F    G    A    B    C...)

...............|....|....|....|....|....|....|....|....|....|....|....|....|....|....|...
2nd MODE:           D         F    G    A         C   (D...)

Compare D Maj:      D    E      F# G    A    B      C#(D...)

...............|....|....|....|....|....|....|....|....|....|....|....|....|....|....|...
3rd MODE:                E         G    A    B         D   (E...)

Compare E Maj:           E      F#   G# A    B      C#   D#(E...)

...............|....|....|....|....|....|....|....|....|....|....|....|....|....|....|...
6th MODE:                               A         C    D    E         G   (A...)
 
Compare A Maj:                          A    B      C# D    E      F#   G#(A...)


 Looking carefully, you will find that the common minor pentatonic scale is found at 3
places in any basic major scale. After even more investigation, you will find these,
and other, 5-note (pentatonic) scales within all the full 7 note scales.

For example: There is a common Major Pentatonic scale, with the intervals:	 

               1          2        3      5          6        8(1)...
(Example keys:)

     C:        C          D        E      G          A         (C)

     F:        F          G        A      C          D         (F)

     G:        G          A        B      D          E         (G)


You will notice, again, there are no sharps(#), or flats(b) in the examples above!
These major pentatonic scales can be found at the 1st, 4th, and 5th modes of the key of C.

Remember: Try to fit the set of notes within the context of the larger scale.
This will help with your abilty to recognize the pattern.


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2011 TONY DESMARTEAU