Diminished Half-Whole: guitar scale formula, degrees and fretboard patterns

Scale formula

Formula: 1 b2 #2 3 #4 5 6 b7. Classification: symmetric.

Description

Detailed explanation The half-whole diminished scale is an eight-note symmetric scale alternating half-steps and whole-steps — the dominant version of the diminished scale. The characteristic sound Inside it has b9, #9, #11 and 13 — every dominant alteration except #5. The sound is tense but with a shine. Tonic and function The tonic is 7b9. By symmetry one shape repeats every minor third, so there are only three different scales. Chords and use Over 7b9 and 13b9. The main diminished scale over a dominant in jazz. A rich source of tense colors. Essence An eight-note symmetric scale over a 7b9 dominant. It starts with a half-step.

Degree functions

• I — Dominant root: Degree I holds the dominant foundation inside symmetry.
• bII — Flat nine tension: Degree bII acts as b9 and strengthens pressure toward resolution.
• #II — Sharp nine tension: Degree #II acts as #9 and intensifies upper tension.
• III — Dominant third: Degree III preserves the major quality of the dominant.
• #IV — Sharp eleven color: Degree #IV gives #11 and adds brightness without destroying structure.
• V — Perfect fifth support: Degree V preserves support, making the scale more focused than Altered.
• VI — Thirteen color: Degree VI gives natural 13 and expands the vertical sonority.
• bVII — Dominant seventh: Degree bVII together with III preserves dominant function.

Use cases

• 7b9#9#11 13 dominants
• bebop and modern jazz dominant
• advanced diminished sequencing
• dominant pedal tension
• symmetric-dominant practice

Typical progressions

• V7dim–I
• ii–V7dim–I
• iiø–V7dim–i
• dominant turnaround with diminished color