BASIC CONCEPT:
In recent months I have devised a number of tunings which feature “the” minor hexatonic blues scale. A few days ago it dawned on me that, in doing so, my thinking was restricted to the I chord (my default for this is Gmaj) of a I-IV-V progression. I was therefore neglecting to consider the Eb and F# of the Cmaj blues scale, and the Ab and A of the Dmaj blues scale.
Two days ago I posted a tuning called "High Octane" for a 12-hole harp. Then it occurred to me that adding a new channel between the three and the four could make for an Extra High Octane tuning.
This tuning features:
1. The I chord twice (once inverted and with its b7th, the other with its b7th).
2. The IV chord and its b7th.
3. The V chord and its b7th.
4. The minor hexatonic blues scale of the I chord (playable without tricky bends or overblows).
5. The minor hexatonic blues scale of the IV chord (playable without tricky bends or overblows).
6. The minor hexatonic blues scale of the V chord (playable without tricky bends or overblows).
7. Some tasty draw bends and enharmonics.
WHEN/HOW: October of 2017. I have not yet had one made.
LAYOUT/DETAILS:
![Image](%5Battachment=0%5D2017-10-30%20%283%29.png%5B/attachment%5D)