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EMT Lesson Two  How to build musical scales

Blues scales

The Blues scale developed from the Blues but is now commonly found in Jazz and Rock amongst other styles. The Blues scale has the same notes as the minor pentatonic scale but with one extra note added in.

This additional note is a flattened* (b) fifth — which is known as the ‘Blues note’. The Blues note sits between the fourth and fifth in the minor pentatonic scale. Take a look at the table below:

Figure 19. A Blues scale (minor pentatonic + flattened 5th)   (Enlarge)

Figure 19. A Blues scale (minor pentatonic + flattened 5th)

So, the intervals of the Blues scale, based on the minor pentatonic, are:

1st, 3rd, 4th, b5th, 5th, 7th

*[Note: To ‘flatten’ a note means to lower it by a semitone. Similarly, to ‘sharpen’ a note means to raise it by a semitone.]

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