C# Half Whole Diminished on the Flamenco Guitar

Where C# Half Whole Diminished lies on the fretboard of a guitar tuned EADGBE, and how a flamenco passage lands it on the count.

C# Half Whole Diminished runs 8 notes to the octave, laid across an EADGBE fretboard with every C# marked — the pitch a phrase keeps coming home to.

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.

On the flamenco guitar a scale is the raw material of the falseta — a composed melodic passage the guitarist drops between sung verses — and of the runs a toque answers the cante with.

Whatever notes a passage runs through, it is measured in compás: it sets off and comes to rest where the count of the palo allows, so every scale here is finally heard against a cycle of accents.