This is not my idea, but I freely adapted the music to try to make it work on the piano. Aldeayeah sent his version and his notation in MuseScore. We were also talking about exotic scales and ragas. That sent me down a very interesting and complicated Rabbit Hole.
The rest of the story:
I no longer remember what scale we started with, much less what the scale is called. But I do know that if you form an octatonic scale and then transpose the second-half of the scale up 1/2 tone, you get the scale that I remember talking about.
It is very confusing:
What I do remember is that I had a lot of fun playing around with the sounds I improvised with here, and that’s how I came to write to make a video and put it on YouTube.