I've looked at multiple scale charts and theyve always told me the first note of the Am blues scale is on the 3rd fret (G). I know all my notes on the low E very well. I'm Past that. Yes the root is on the A, but it starts on the G. I'm not saying you're wrong, I understand what you're saying; but my scale book shows it as this:
----------------------------------------------3-5-------
-------------------------------------3-4-5------------
---------------------------2-----4-------------------
------------------2----4-----------------------
---------3---5--------------------------
--3---5----------------------------
The roots being on the 5th of the low E and the 2nd of the G.
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