In one sentence: D minor pentatonic with Ab, a passing blue note between G and A.

Formula and map

• Formula: 1-♭3-4-♭5-5-♭7.
• Notes: D-F-G-Ab-A-C.
• The minor pentatonic is D-F-G-A-C; Ab opens the path between G and A.

Useful fingering

• Right hand up: 1-2-3-4-1-2-3. Down: 3-2-1-4-3-2-1.
• Left hand up: 5-4-3-2-1-3-2. Down: 2-3-1-2-3-4-5.
• Practice the thumb crossing first without pedal and with an even touch.

Do it, use it, understand it

1. Do it: repeat G-Ab-A and hear how Ab asks to continue.
2. Use it: over D7-G7-A7, answer a three-note phrase with a shorter one.
3. Understand it: Ab is ♭5; its closeness to G and A creates tension without making it an arrival note.
4. Listen: in B.B. King's “The Thrill Is Gone,” identify the rests and short answers; use the phrasing as a model, not the recording's key.

Listening and context

Minor-blues vocabulary travelled from singing and acoustic guitar to electric bands. Listen to B.B. King or Muddy Waters for phrasing and the blue note; they are style references, not pitch maps for D.

Common mistakes

• Do not confuse Ab with A: play them together in sequence before improvising.
• As an initial practice, move Ab toward G or A when closing a phrase.
• Do not fill every beat: an answer can begin after a rest.

Checklist

• I can find Ab between G and A.
• I can play one octave with consistent fingering.
• I use G-Ab-A as a short connection.
• I can build two phrases with space between them.