G Blues Scale

Play G-B flat-C-D flat-D-F-G. Leave out D flat and you have G minor pentatonic: G-B flat-C-D-F. That is the fastest way to remember the six-note set. The notes G-B flat-D form the tonic minor chord.

D flat is the piano key between C and D. It is a lowered fifth above G; C sharp names the same key but hides that degree relationship.

Try C-D flat-D and then C-D. The first version passes through a point of tension; the second skips over it. How long you stay on D flat can matter as much as whether you include it.

Play G-B flat-C-D flat-D, then F-D-B flat-G. Stop briefly on D flat once and pass over it quickly once to compare the two uses.

This six-note list is a practical entry to blues phrasing, not a complete rule for the style. A singer or guitarist can bend pitches between piano keys. Over G7, the minor third B flat can also rub against the chord's major third B; listen to the accompaniment when you sustain it. Pentatonic and Blues Scales explains how the note set and the played phrase differ.