Anything apart from the two mainstream default harmonicas (Solo-tuned fully-valved chromatic, and un-valved Richter 10-hole diatonic). Alternate tunings, different construction, new functionality, interesting old designs, wishful-thinking... whatever!
BASIC CONCEPT:
This tuning is designed especially for folks who play harp in a neck rack. There are three FAT chordal zones, one each for the I, IV and V chords--and also their b7ths! As far as chord-chugging goes, this tuning should be very forgiving of imprecise playing technique. The red brackets show where one draw note of the minor hexatonic blues scale can be bent down to the next lower blues scale note.
WHEN/HOW: January of 2018. I have not yet had one made.
The 5 draw note and is shared between two chords: as a perfect fifth for one chord and as a root for the other chord. Therefore, it can be tuned to ET and will sound good for both chords.
None of the major third notes are shared; they can be tuned to ET -14 cents.
None of the septimal minor seventh notes are shared; they can be tuned to ET - 31 cents.
[I am not an expert tuner. Use these ideas at your own risk. If you are an expert, please feel free to comment.]
I just noticed that if the partial Cmaj chord was extended for one more channel, then the minor hexatonic blues scale could be played for two complete octaves which have identical breath patterns. This seems almost paradoxical, because those two blues octaves span two different chordal areas of the harp.
On this tuning, playing the blues scale pentatonically (by omitting the C#) could gain in speed, since the C# is a draw bend. But it's still there when needed.
Last edited by IaNerd on Mon Feb 26, 2018 4:46 pm, edited 1 time in total.
Please note that the major triads in the blow row align perfectly with those in the draw row. This makes for optimally fast and easy chugging between those chord pairs. The same is true of all the b7th tetrads.
This tuning is also sports a number of triple-stop octave pairs, especially in the blow row.
