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B prometheus neapolitan Scale — Guitar Fretboard Visualization

Low E string: E#, G#, A, B, C, D# at frets 1, 4, 5, 7, 8, 11

A string: A, B, C, D#, E#, G#, A at frets 0, 2, 3, 6, 8, 11, 12

D string: D#, E#, G#, A, B, C at frets 1, 3, 6, 7, 9, 10

G string: G#, A, B, C, D#, E# at frets 1, 2, 4, 5, 8, 10

B string: B, C, D#, E#, G#, A, B at frets 0, 1, 4, 6, 9, 10, 12

High E string: E#, G#, A, B, C, D# at frets 1, 4, 5, 7, 8, 11

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B 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:

B

I

C

bII

D♯

III

E♯

#IV

G♯

VI

A

bVII

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

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

How to play B prometheus neapolitan on guitar

Open B rings as a root and open A as the minor seventh, so two unfretted strings stay in key while the hand moves above. Fretted roots appear at the 2nd fret, the 4th, and the 7th, which means both barre shapes get an anchor below the octave. D string carries one at the 9th. Capo the 2nd fret to borrow A fingering, and the opening shape still holds to the 11th.

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