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A♭ prometheus Scale — Guitar Fretboard Visualization

Low E string: F, Gb, Ab, Bb, C, D at frets 1, 2, 4, 6, 8, 10

A string: Bb, C, D, F, Gb, Ab at frets 1, 3, 5, 8, 9, 11

D string: D, F, Gb, Ab, Bb, C, D at frets 0, 3, 4, 6, 8, 10, 12

G string: Ab, Bb, C, D, F, Gb at frets 1, 3, 5, 7, 10, 11

B string: C, D, F, Gb, Ab, Bb at frets 1, 3, 6, 7, 9, 11

High E string: F, Gb, Ab, Bb, C, D at frets 1, 2, 4, 6, 8, 10

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Ab prometheus

The prometheus scale is Scriabin's mystic chord laid out as a six note scale: root, 2nd, major 3rd, raised 4th, 6th, flat 7th. It is the lydian dominant sound with the 5th removed, which unmoors it: bright, whole-tone leaning and never quite resolving. Use it over 7#11 or 13#11 chords, or for harmonically suspended interludes.

it consists of these notes and degrees:

A♭

I

B♭

II

C

III

D

#IV

F

VI

G♭

bVII

prometheus in all 12 keys, with chords and related scales

tip
  • This is the mystic chord as a scale: stack it in 4ths from Ab (root, #IV (D), bVII (Gb), III, VI, II) to hear it as Scriabin voiced it.
  • Over a 13#11 chord, every note lands; with no 5th in the scale, nothing anchors, which is exactly the floating effect.
  • Treat II and VI as melodic pivots between the whole-tone-flavored lower notes and the dominant color of bVII (Gb).
  • Resolve by half step: #IV (D) up to the 5th of the next chord, or bVII (Gb) down to its 3rd; the scale exits gracefully despite its float.

How to play A♭ prometheus on guitar

Only one open string touches this scale: the D, sounding the augmented fourth above Ab, so open-string help is close to nonexistent in this key. Nearest root compensates by sitting just at fret 1 on the G string. A capo clamped at fret 1 recasts the key as G fingering, which means open strings and nut-position shapes come back into play. Fret 4 gives roots on both E strings.

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