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G prometheus neapolitan Scale — Guitar Fretboard Visualization

Low E string: E, F, G, Ab, B, C#, E at frets 0, 1, 3, 4, 7, 9, 12

A string: B, C#, E, F, G, Ab at frets 2, 4, 7, 8, 10, 11

D string: E, F, G, Ab, B, C# at frets 2, 3, 5, 6, 9, 11

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

B string: B, C#, E, F, G, Ab, B at frets 0, 2, 5, 6, 8, 9, 12

High E string: E, F, G, Ab, B, C#, E at frets 0, 1, 3, 4, 7, 9, 12

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

How to play G prometheus neapolitan on guitar

Open G is a root in its own right, with the E pair on the major sixth and open B supplying the major third, so four strings ring untouched in this key. Fretted roots turn up at the 3rd fret and the 5th, which lets you jump octaves inside first position. B string holds another at the 8th. First box quits at the 7th fret, so the shift lands below the octave marker.

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