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G♭ prometheus neapolitan Scale — Guitar Fretboard Visualization

Low E string: Fb, Gb, Abb, Bb, C, Eb, Fb at frets 0, 2, 3, 6, 8, 11, 12

A string: Bb, C, Eb, Fb, Gb, Abb at frets 1, 3, 6, 7, 9, 10

D string: Eb, Fb, Gb, Abb, Bb, C at frets 1, 2, 4, 5, 8, 10

G string: Abb, Bb, C, Eb, Fb, Gb, Abb at frets 0, 3, 5, 8, 9, 11, 12

B string: C, Eb, Fb, Gb, Abb, Bb at frets 1, 4, 5, 7, 8, 11

High E string: Fb, Gb, Abb, Bb, C, Eb, Fb at frets 0, 2, 3, 6, 8, 11, 12

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Gb 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:

G♭

I

A𝄫

bII

B♭

III

C

#IV

E♭

VI

F♭

bVII

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

tip
  • Prometheus with a phrygian doorstep: open with b2 (G) against the root, then float through III, #IV (C), VI, bVII (E).
  • Over an altered dominant vamp on Gb, the b2 (G) 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 (G) makes a two-scale hook.
  • With no 5th, keep the root sounding low; a bass pedal on Gb is what keeps this scale legible.

How to play G♭ prometheus neapolitan on guitar

Open G stands in for Abb while both E strings supply Fb, so three unfretted strings sit in key without any spelling headache. Roots begin at the 2nd fret on the outer pair, so the barre sits near the nut. First shape shuts down at the 6th. Two capo frets put you in E fingering, and five flats stop being a reading problem.

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