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A♭ prometheus neapolitan Scale — Guitar Fretboard Visualization

Low E string: F, Gb, Ab, Bbb, C, D at frets 1, 2, 4, 5, 8, 10

A string: Bbb, C, D, F, Gb, Ab, Bbb at frets 0, 3, 5, 8, 9, 11, 12

D string: D, F, Gb, Ab, Bbb, C, D at frets 0, 3, 4, 6, 7, 10, 12

G string: Ab, Bbb, C, D, F, Gb at frets 1, 2, 5, 7, 10, 11

B string: C, D, F, Gb, Ab, Bbb at frets 1, 3, 6, 7, 9, 10

High E string: F, Gb, Ab, Bbb, C, D at frets 1, 2, 4, 5, 8, 10

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Ab prometheus neapolitan

The prometheus neapolitan scale darkens the prometheus scale by lowering its 2nd: root, flat 2nd, major 3rd, raised 4th, 6th, flat 7th. The Neapolitan flat 2nd adds a Phrygian shadow to an already floating whole-tone-ish set, giving lines an exotic snap right at the start of the scale. A niche but memorable color over altered dominants.

it consists of these notes and degrees:

A♭

I

B𝄫

bII

C

III

D

#IV

F

VI

G♭

bVII

prometheus neapolitan in all 12 keys, with chords and related scales

tip
  • Prometheus with a phrygian doorstep: open with b2 (A) against the root, then float through III, #IV (D), VI, bVII (Gb).
  • Over an altered dominant vamp on Ab, the b2 (A) reads as a b9; the rest of the scale keeps the 13#11 shimmer.
  • Contrast the two 2nds across phrases: a prometheus line (natural II) answered by this scale's b2 (A) makes a two-scale hook.
  • With no 5th, keep the root sounding low; a bass pedal on Ab is what keeps this scale legible.

How to play A♭ prometheus neapolitan on guitar

Open A works as Bbb and open D as the augmented fourth, so two strings still ring inside the key. Lowest root hides at the 1st fret, G string, which means position one opens at the nut and holds through the 8th. Both E strings take roots at the 4th. Slide a capo to the 1st fret and G fingering appears, so three flats stay on paper.

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