[sdiy] Mopho modulation DAC configuration, update rate, etc

[David G. Dixon]

> It's too late to look at the encoder scan rate :-) , I spent the evening
> trying to tune a Hammered Dulcimer. 31 x 3 = 93 separate strings.  It
> had never been tuned, and the strings are stretching like crazy.  Three
> passes through, and it is still not staying in tune, even with
> stretching the strings between each tuning pass - you think calibrating
> a VCO is a pain?

That reminds me of the hours of fun I used to have tuning a harpsichord (183
strings on that one!).  Now THAT was analog!