About the A Prometheus scale
A Prometheus is used for impressionist and mystical concert music. Think of it as the mystic chord of Scriabin turned into a scale, a raised fourth with no fifth. It is A Whole Tone with the sixth raised.
Its notes are A, B, C♯, D♯, F♯, and G. The formula is W W W 1½ H W.
Also called Mystic Scale and Mystic Chord.
A, G, and B are open guitar strings that sit inside the key, ready to drone under a riff. The open A string is the lowest A on the neck.
Positions
Playable shapes for this scale up the neck. Tap any note to hear it.
6-position system
6 four-fret boxes, one per scale degree, each a single hand position with almost no shifting. The jazz and classical way, from William Leavitt's Berklee method.
Notes and intervals
| 1 | AA | Root |
|---|---|---|
| 2 | BB | Major 2nd |
| 3 | C#C♯ | Major 3rd |
| 4 | D#D♯ | Augmented 4th |
| 5 | F#F♯ | Major 6th |
| 6 | GG | Augmented 6th |
| Steps | W W W 1½ H W |
|---|---|
| Semitones | 2-2-2-3-1-2 |
| Degrees | 1 2 3 ♯4 6 ♯6 |
Shapes
Chromatic
Circle of Fifths
Related scales
Prometheus in other keys
Modes
The same notes, starting on a different note.