[sdiy] scales for a pitch voltage quantizer

[Wilfried Dietrich]

Hello all,

I'm new to this list so I like to introduce myself
in short before asking my first question.

I'm from germany and I have (re)started synth diy a year 
ago on the basis of the renewed Formant Pro project.
I say restarted because I had already an modular project 
running during the early 80s. Due to several reasons its
progression slowed down more and more and then at one point in
history anything of interest had to be digital. So I forgot
the whole story and putted the rests into the waste basket :(
I was always faszinated by electronic sounds and instruments 
but I never had a musical education, so (beside the above short
story) my interest in sythesizers remained "platonic" for 
years. But when my daugther was old enough to take piano
lessons I thought "why not - now or never" and since then we are 
sharing the same piano teacher. You see at this point it couldn't 
last very long until I had bought my first synth ;) 
Now while owning a number of beautiful digital synths (K5000,
Nord Modular) I found myself still wishing to have a real analog
modular, with real knobs and real patches and a real wood case.
I just had started to search for an appropriate project when the
Formant Pro book was issued, so this was the way to go for me.

Now to my question. Because the Formant system is lacking
a pitch voltage quantizer I designed one based on an Atmel
ATtiny15 controller. The module is already working. The required code 
is very small so I have room for up to 12 different output scales.
But which ones are the most useful ? At the moment I plan to 
implement the following scales:

chromatic
major
major chord
major chord + 6th
major chord + 7th
minor
minor chord
minor chord + 6th
minor chord + 7th
pentatonic

There are two options left (at the moment called Exotic I and II). 
Any suggestions ? 
Or is someone voting for a completely other selection ?

Thanks in advance
Wilfried