I was looking for the new Alien film trailer and this also popped up because of my historical scale searches I guess.
According to Wikipedia,
So now you know :-)The Prometheus scale is so called because of its prominent use in Alexander Scriabin's symphonic poem Prometheus: The Poem of Fire.
THE PROMETHEUS SCALE is a six note/tone scale and contains the intervals: 1,2,3,#4,6,b7.
The free guitar scale diagrams below lay out the scale for you all over the neck, as a three octave scale and as the various three note per string patterns that will link together to let you play it all over the fretboard in any key.
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