G# Half Whole Diminished — Tenor Guitar

G# Half Whole Diminished is 8 notes per octave (symmetric family), drawn here as position boxes on the Tenor Guitar's CGDA grid with the root flagged in each — learn one box deeply, then let the overlaps carry you into the next.

Tense, symmetrical, and slightly sinister — alternating half and whole steps pack in the b9, #9, #11, and 13, so it sounds like a dominant chord stretched to breaking point. Edgy, jazzy, and restless.

Heard in: Jazz lines over 13b9 dominant chords, fusion, film-noir and horror scoring — the sound of a V chord that refuses to settle.

Fifths spread each scale wider per string than a standard guitar — fewer notes per position, longer reaches, and patterns that repeat cleanly across every string pair.

Play each box top to bottom until the roots feel like home base, then practice crossing between boxes mid-phrase — neck freedom is exactly that crossing, nothing more.