Friday, May 05, 2006

 

Lesson-17 : Scaling the Scales : Part-2

(Continued....from Part-1)

Hi All,

We just saw the pattern of a Major Scale which is as follows :



Conversely, we can also say that “ if any scale has the above gap pattern, then it shall be a Major Scale. “

Very simple….!

Certain other observation from the above interval (gap) pattern :

The total of these intervals are 5 Whole + 2 half = 6 Whole tones ( 12 keys x each half tone = 6 Full tone )

So, one octave is consisting of 6 whole tones and each consecutive notes of keyboard keys will be semitone distance apart.

(So you can conclude the White and black key relation is usually a semi tone apart…! Anyway we are not concerned with black keys directly now…!)

Another observation is that there is a symmetric pattern around the center point

i.e. C to F and G to C has similar pattern viz. ( Whole + Whole + Semi ) !!!

These two identical groups are added by the joining Whole tone in between F and G…!

In earlier period only four-notes scale similar to C to F existed and the present evolution of Major scale was the joining of two similar identical four-notes scale !

Which are easy to sing as well as easy to find in a key board system, all white keys!

(For Carnatic buffs : Such similarity you can get in raagam Mayamalava Gowla. So any Carnatic learning starts with this raagam for simplicity in singing due to this similarity )

So some kind of introduction we are having now with the Major Scale !

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