The Blues scale (B) consists of the same notes as the minor pentatonic scale with one extra note, i.e., the flattened 5th note of the major scale. The note pattern of the blues scale is T1/2 T S S T1/2 T .
There are various chord types that match to the blues scale. The blues scale, one inversion and some matching chords are listed here.
The example 280 illustrates the A blues scale with the note pattern:
T1/2 T S S T1/2 T
The BII is constructed by starting and finishing on the second note of the A blues scale, the C note in the given example. The note pattern is
T S S T1/2 T T1/2
Example 282 is entirely based on the notes of the blues scale. The first bar uses the notes of the A blues scale only, and the second bar utilizes BII as just shown.
Example 283 and 284 are four bar progressions with a funk rhythm groove using predominantly notes from various blues scales.