Actually the straight up minor blues pent is out of tune in G blues. The unbent minor 3rd Bb, that sits naturally on the fretboard is too flat. It's good for chords but is bad for single note blues. Blues playing takes the Bb and bends it up, > a 1/4 step <, a note found in-between the Bb and B in the key of G, it's called a microbend.This weird new slightly bent note is at the heart of the coolest notes in blues, the notes that get stretched out with emotion, the money notes.Thanks for the theory lesson, I hope I'll remember the flat note thing. The first was C minor pentatonic, the second C major pentatonic. The same shape but one with the pinky at the root, other the index finger. I think in shapes an learn to find the right notes by trial and error. Can't get my brain to remember all the notes and theory around it.
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Your lesson made me realize the relative minor/major stuff is in this shape. This shape at the 5th fret is A minor and it's relative C major. Just pick the second note as root (I knew that but never saw the connection)
At the 5th it's A minor and C major.
The C major scale just has a few extra notes, one of those (F) overlaps with the minor pentatonic, two notes of the minor pentatonic are indeed flat (Bb,Eb) in relation to the major but one of those (Eb) is a blue note of the relative minor of C major, A minor. So that's giving version one the extra blue feeling. Kind of a very blue, blue note and yeah one eerie, wrong note.
So many words to say you got me a little bit further in the theory. Good job!
In the case of G minor blues you go back to the unbent Bb and stay away from micro bending it.