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Blues And Rock Scale Options
This lesson will focus on the main change or theme for the blues which is the following progression (Key of A Blues):
This is known as a I (one) to IV (four) change in the blues and these two chords comprise the first eight bars of your standard, twelve-bar blues. The last four bars are the turnaround and will be addressed later.
This goes for any A Major to D Major type-change whether the chords are A Major, A6,
A7,9,13, etc or D Major, D6, 7,9,13 etc.