I suspect it might be Bitwig's instrument, did not research it yet and this is not advertising :P

The 1st sec. of Demo "Berlin Mornings" by Genys https://soundcloud.com/genys

https://www.bitwig.com/en/home.html (the rulers & wiggles is not part of Bitwig software)

https://www.adam-audio.com/en/f-series/f5/ - claim 52 Hz - 50 kHz (ribbon tweeter)

Watch in HD!

thoughts?