Thanks, a fascinating mix of two different virtual instruments!  Can you explain more about the 12ed3 temperament?  Googling for this term is not useful!

Hello Hanysz.  A you may know "12ed2" stands for "12 equal divisions of the ratio 2" which thus mean 12 equal divisions of an octave.
This is the normalized system that's been around since beginning of 20th century.
Before that, ... well.. it's complicated!!  haha!!!
(And it was also more in tune and Pianoteq is a GREAT learning tool for discovering what Baroque, Classical composer actually heard and why they wrote in such and such tonalities)

The tuning system I applied was "12ed3" which stands for 12 equal divisions of the ratio 3 which is an octave plus a perfect fifth.
(If you go back to the soundcloud page, i changed the image for you to see the tuning circle in Pianoteq)
Normally you have somewhat 19 equal divisions for that interval (well not exactly cuz perfect fifths dont exist in 12 equal temperament... nevermind that for the time being..).
You thus have less notes to play with...  and the intervals are NOT exactly like in 12ed2..  so it sounds a bit strange...  but it's fun.
It tends to give more minor(ish) thirds and diminished(ish) chords.. no real semi-tones... etc...
Also this changes your relationship to the keyboard,,,,
There is a lot to say but i'll stick to this for now...

Links and ressources:
Scala files:
There are a lot of scala files out there on the web.
1-
The biggest and best knowned is: 
http://www.huygens-fokker.org/docs/scales.zip
2-
My "12ed3" is taken out of this scala files pack:
https://sevish.com/music-resources/#tuning-files
Sevish's web site is a gold mine of ressources and easy-to-grab documentation.
(Just drag any .scl file over Pianoteq and you're good to go and experiment.)

3-
If you are interested in "anything that's not 12ed2" you might consider joining diverse microtonal Facebook groups..
example:  The Xenharmonic Alliance

4-
For the time being, if you want to try out:
You may download the Pianoteq presets i prepared for this piece:
https://we.tl/t-q5R90xrnnO
password: 200724a

I hope you have fun!!

Une petite pièce qui utilise seulement Surge et Pianoteq tous tunés en 12ed3.