This piece, challening but rewarding, features an alternating bass feel and incorporates numerous barre chords.
View the full lesson at justinguitar.com/guitar-lessons/raggy-bar-blues-main-lesson-sb-1301
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On the B7 in bar 12 (the stretchy B7) there is I believe a C# note. What is a C# doing there? Does that make it Dorian?
Hi again , is there a typo on measure 11, beat 2? Should beat 2 on the E7 be 6/5 not 6/7?
Thanks.
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@CoolDaddy1 Gregg. The little finger dropping back one fret on the B string for B7 and E7 chords does introduce the 6th to each chord. I understand why that has raised a Dorian flag in your initial analysis but that is not it. The new interval means those chords briefly become B6 and A6 … or B13 and A13 if you prefer because the b7 is still in the grip on the G string.
RE the E7 … Justin plays more than one grip and he does seem to interchange them in bar 11. Choose whichever you prefer in that bar.
Hi Gregg,
Yes, you’re right. Justin does play fret 5 on the B string in that bar. On beat 2, the TAB should say 6+5. Well spotted. Fret 7 would make the transition to the next chord very awkward.
Yes, there is a C# in that chord. It’s actually a cool voicing for a B9, which is a fancy version of B7. The intervals in that shape are Root, b7th, 9th, 3rd. C# is the 9th.
No, definitely not. Dorian is a minor mode because it contains a minor 3rd. B9 is a dominant chord because it contains a major 3rd and a minor 7th. The correct mode for dominant chords is Mixolydian. However, personally I wouldn’t be thinking about any modes when playing this song. It’s a 12-bar blues in E.
Hope that helps. 
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