C prometheus neapolitan Scale — Guitar Fretboard Visualization

Low E string: E, F#, A, Bb, C, Db, E at frets 0, 2, 5, 6, 8, 9, 12

A string: A, Bb, C, Db, E, F#, A at frets 0, 1, 3, 4, 7, 9, 12

D string: E, F#, A, Bb, C, Db at frets 2, 4, 7, 8, 10, 11

G string: A, Bb, C, Db, E, F# at frets 2, 3, 5, 6, 9, 11

B string: C, Db, E, F#, A, Bb at frets 1, 2, 5, 7, 10, 11

High E string: E, F#, A, Bb, C, Db, E at frets 0, 2, 5, 6, 8, 9, 12

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C 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:

C

I

D♭

bII

E

III

F♯

#IV

A

VI

B♭

bVII

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

How to play C prometheus neapolitan on guitar

Three open strings belong here, both E strings at the major third plus open A at the major sixth, so a drone is on tap with no open root available. Lowest fretted root waits at the 8th fret on either E string, which lets the E-shape barre double as the first box. B string offers one at the 1st fret. A string joins at the 3rd, and the opening shape holds until the 12th fret.

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