Alternate Tuning Techniques


I like the patch! Nice harmonies.
I got the final version working this morning and discovered that it has some interesting quirks. Because it is possible to play a series of intervals that result in the quantizer getting progressively farther from the starting pitch, eventually you reach the point where two keyboard notes quantize to the same output value. In order to resolve this I think it will be necessary to change approaches. The current model captures the quantizer output and uses it to transpose the input, but I think it will be necessary to determine the required interval first and then modify the current output accordingly. Back to the drawing board. Just for grins here’s what I have currently:
Sliding quantizer dev.audulus (202.2 KB)


So I have been in communication with a couple of redditors who work primarily with microtonal music, acriel (mentioned above) and FlyNap (who works exclusively in JI)

I asked them both about how they navigate JI

From FlyNap

I take many approaches to JI. For example I might find a set of small 5-limit intervals I like the sound of, and the use an algorithm to find all the different sets of them that fit in a span. Then take that span and repeat it up and down using the harmonic/subharmonic series.

The things that make my approach different:

  • Forget octave repeating
  • liberal use of harmonic series
  • keyboard maps that might not be linear in pitch
  • commas are cool, just go with it
  • discard western musical system of named notes entirely.

A scale you might be interested in that is sorta like 31 EDO, but is actually just is 22 Shruti. It’s octave-repeating, but it’s a wide octave. The component intervals are explained on that site. I find it really elegant. As for finding nice harmonies - just use your ear. You’ll find consonances unavailable in ET.

From acreil

I do both. For just intonation scales I find it’s easiest to use the harmonic and/or subharmonic series. If you want a 12 note scale you can pick a range of harmonics from 16 to 31, or 24 to 47 or whatever and omit the ones you don’t want (typically the really high prime numbers). So you could do 16, 17, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30 and see how that sounds.


Here’s a version that works a bit better. It still has a few issues but at least the interval changes work properly. Set an initial note using the knob and reset the unit (A = 0, A# = 1, B =2 etc.) It will calculate the interval and modify the output accordingly. Like the earlier unit the actual pitch generated by an input note will change depending on the notes played before.
Sliding Quantizer Mark II.audulus (285.7 KB)


Maybe I should call its the NTSNT quantizer (Never The Same Note Twice)!:cowboy_hat_face:


Each note has a unique existence!