So position one of the Am blues scale starts at the 3rd fret on the G note, I can move that box down a whole step and that is Bm? So then the Bm pentatonic starts at the 5th fret. That seems like a far start for a scale, there's got to be a box before the 5th fret box. It just doesn't seem right that all the notes before the 5th fret would be skipped.
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