Tuning - Major Diatonic, Part 14 (G Blues Scale, Part 1)

Let's now look at the V7 Chord in 1st Position

V7 Chord
- G B D F

V7 Chord Blues Scale
- G Bb C Db D F G

First Octave: 1+ 1' 1 2" 2
Sequentially this is complete, running out of range for the bottom two notes of the scale.

Second Octave: 2 3' 4+ 4' 4 5 6+
This is complete and very usable.

Third Octave: 6+ (7) 7+ 8 9 9+ (10"+)
This octave only has one of the three blue notes needed to make the blues scale. Though not a very bluesy range of the harmonica, if you play with a lighter feel the high-end is very usable.