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The augmented 6 tone scale (also known as a whole tone scale) ascends and descends in equal interval (tone or 2 fret) steps from a root to its octave and by doing so, shifts the notion of key-centre from one tone to the next. As a result, the scale may be named by any one of the 6 tones in the scale and, where played from their root to their octave contain the same tones. As a general rule though, any scale is named in accordance with the root (whether key-centred, played or neither) or lowest note of the scale. In affect, there are only two aug. 6 tone scale patterns, the C (and also called D, E, F#, G# and or A#) and C# (and also called D#, F, G, A and or B). Wherein lay, the other names of and overlapping patterns for, all the other aug. 6 tone scale structures.
The equal interval construction of the augmented scale is a repetition of -3 & H (-3 H -3 H -3 H) and as with other forms of augmented scale, include the 1 3 and #5 (C E and G#) tones of the arpeggio. 1 3 #5 is also the augmented chord spelling in equal interval major 3rd steps with 1 being reference to the non key-centered root or bass note.The 7 tone lydian aug. scale is a lydian mode with a sharpened or augmented 5th. In passing, the augmented 5th (G#) attacks the key-centre (key of G) of the lydian mode with the key-centre of G#. Notice the two tetrachords (4 note half scales) are both constructed in equal interval steps of "T T T T" and "T S T S". Shown below is the tonal structure for augmented scales and the 3 tone augmented arpeggio (notes of the chord played one after the other) from the root C.
|-------------Equal Interval Steps -------------|
T T T T T T
1 3 #5
Aug. 6 Tone - C D E F# G# A# C (6 Tone)
|------------ Equal Interval Steps -------------|
-3 S -3 S -3 S
Augmented - C D# E G A- B C (6 Tone)
|-Tetrachords In Equal Interval Steps --|
|---------------------||----------------|
T T T T S T S
Lydian Aug - C D E F# G# A B C (7 Tone)
Lydian Mode - C D E F# G A B C (7 Tone)
|C - G=Perfect 5th Interval|
|C - G#=Augmented 5th Interval|
|------------- Equal Interval Steps -------------|
Maj. 3 Maj. 3 Maj. 3
Aug. Arpeggio - C E G# C (3 Tone)
|------------------Chromatic Tones------------------------||Extended ->
1 2 3 4 5 6 7 8 9 10 11 12 1 2
c c# d d# e f f# g g# a a# b c c#
(d-) (e-) (g-) (a-) (b-) (d-)
C Aug. 6 Tone - c d e f# g# a# c
C# Aug. 6 Tone - c# d# f g a b c#
AUGMENTED CHORD SPELLING
C_______D_______E_______F_______G_______A_______B_______C_______D_______E
C Aug - 1 3 #5(G#) * * 4
E Aug - * 1 3(G#) #5(B#) * 4
G# Aug - * * 1(G#) 3(B#) #5(D##) 7
A- Aug - * * 1(A!) 3(C) #5(E) 4etc…