C Whole Half Diminished Scale on Octave Mandolin

Play the C Whole Half Diminished scale on Octave Mandolin with fretboard diagrams that map the pattern across the neck. The Whole Half Diminished scale has 8 notes per octave and belongs to the symmetric family.

2 of Octave Mandolin's 4 open strings belong to C Whole Half Diminished: D (the 2nd), A (the 6th). The G and E strings fall outside it, and C is not available open. Open, the strings cover G2 to E4.

Unstable and eerie — alternating whole and half steps, with the b3, b5, and 6 spelling a diminished seventh chord in every direction. Ominous, symmetrical, and unresolved.

Heard in: Diminished seventh chords in classical and jazz, horror and suspense scores, Bartok and Stravinsky, and neoclassical metal.

Octave Mandolin is strung in four courses of two, so each stopped note here sounds as two — which is why the shape rings thicker than the same grip on a single-strung instrument.

Each position shows the scale notes and their intervals from the root so you can connect the shape to its sound, hear it with audio playback, and practice it in any register. Movable patterns let you transpose the same fingering to other keys once it is learned.

Once a position is under your fingers, link the C Whole Half Diminished scale to the chords it harmonizes and to progressions in the key of C to start improvising and writing with it. Working a scale alongside its chords is the fastest way to make it stick and to hear how it colors a progression.