[blt]

Wendy Carlos is awesome! I didn't know about the 2000 version, I will check that out.

Tuning is just a block of data on a digital synthesizer, but on an analog synthesizer it's not. If you use a keyboard controller, it's generating pitch control voltages with a fixed 2^(1/12) ratio between notes (or logarithm thereof). It would be challenging to convert this into a just intonation.

On the other hand, if the pitch control voltages are generated by potentiometers on an analog sequencer [1] and the musician is setting those potentiometers by ear, the musician will probably end up tuning to a just intonation because it sounds more correct to the ear.

[1] https://en.wikipedia.org/wiki/Analog_sequencer