free_language is made of mp3 detritus from "In All Languages" by Ornette Coleman, one of the test tracks used to create the MP3 format.
download @ rpm7.bandcamp.com as WAV/FLAC/AIFF/whatever
video @ vimeo.com/259198182
Is this generated by just flipping the phase?
Did you use any plugins after the fact, or is this the exact…