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Looking to jazz as my harmonic teacher while understanding atonality: modulating on a ghost scale (1/?)
Stacking 3 consecutive diatonic m9 triads within a semitone produces a harmony reproducible by stacking 2 octatonic scales. Use comes in the double diminished relationship of these 2 (but really 3 chords); when stacking 2, you imply the 3rd by addition of the 9th scale degree (coincidentally the 9th overtone in its respective series). This degree functions to create the mirage of the 3rd scale, upon which we modulate.
The cool thing about this 'ghost' scale and music at its best is that you don't have to hear it to hear it.
The diminished nature of any closer skeleton voicing reveals tritone relationships between the 2 chords. Analysis of Scriabin's works in particular reveals heavy vertical use of chords an augmented 4th apart.
What's really beautiful, and useful about this chord stacking is you can ultimately set yourself up to modulate to any key. My limited understanding of modulation, specifically my understanding of modulation and other tonal-centric linguistic devices that do not apply to atonality keep me from fully grasping this. But it's getting me somewhere. The key to getting it is just to keep going I guess.
I believe that this is somehow related to Scriabin's musical theory. He died before he could teach it. Maybe I'll hear from him soon.
Maybe this will become a music blog. Not sure but since I've got the anonymity of the internet to talk to in the learning stage I'm in rn that's what I want it to be.
From Michael McVay - Scriabin: A New Theory on Harmony and Structure
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now tht I have a tumblr I can post notes app type things. Awesome this is way cool
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