Five notes taken from the natural minor scale: the tonic, flat third, fourth, fifth and flat seventh. It is the most widely used scale in rock and blues improvisation.
1 = Bb
b3 = Db
4 = Eb
5 = F
b7 = Ab
Root
Bb (also written A#)
Scale
Minor pentatonic
Type
pentatonic
Notes
Bb Db Eb F Ab
Notes in the scale
5
Degree formula
1 b3 4 5 b7
Semitones from the root
0 3 5 7 10
Step pattern
W+H W W W+H W
Key signature of this root
Bb major / G minor · Bb Eb
Written use
Named 1 b3 4 5 b7. Its five positions are the same shapes as the major pentatonic with a different tonic.
Notes and degrees
Each degree of the scale, its note name in this key, and its distance from the root in semitones.
Degree
Note
Semitones
Interval from the root
1
Bb
0
Perfect unison
tonic
b3
Db
3
Minor third
4
Eb
5
Perfect fourth
5
F
7
Perfect fifth
b7
Ab
10
Minor seventh
Positions on the guitar
The five windows below are computed, not copied from a shape chart. The script locates the lowest
occurrence of Bb on each of the five upper strings within the first twelve frets and takes a
five-fret window centred on it. Because a scale repeats every twelve frets, these five windows cover
the whole neck; the same sequence returns an octave higher. The positions are numbered from the lowest
fret upwards, so position 1 is always the window nearest the nut and position 5 the window nearest the
twelfth fret.
Position 1 — frets 0–3
Root on the 5th string A2 at fret 1. 8 notes of the scale inside this window.
Read the grid as a chord diagram: the top row is the first string. Degrees appear in the
notes and degrees table above; a filled cell is a note of the scale, and the shaded cell is the tonic.