F prometheus neapolitan Scale — Guitar Fretboard Visualization

Low E string: F, Gb, A, B, D, Eb at frets 1, 2, 5, 7, 10, 11

A string: A, B, D, Eb, F, Gb, A at frets 0, 2, 5, 6, 8, 9, 12

D string: D, Eb, F, Gb, A, B, D at frets 0, 1, 3, 4, 7, 9, 12

G string: A, B, D, Eb, F, Gb at frets 2, 4, 7, 8, 10, 11

B string: B, D, Eb, F, Gb, A, B at frets 0, 3, 4, 6, 7, 10, 12

High E string: F, Gb, A, B, D, Eb at frets 1, 2, 5, 7, 10, 11

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F 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:

F

I

G♭

bII

A

III

B

#IV

D

VI

E♭

bVII

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

How to play F prometheus neapolitan on guitar

Scale tones ring on open A, D, and B alike, giving the major third, the major sixth, and an augmented fourth, which lets you park a pedal under a fretted line. Roots occupy the 1st fret on the E pair, so the first box owns the lowest frets and quits at the 5th. D string chips in at the 3rd. One capo fret rewrites this as E fingering.

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