Thanks for tagging me @Brogner. It’s interesting.
@1roomstudio
It looks like Jazz theory a bit, but focused on symmetrical ideal counterparts. “Ideal” because instead of inherent relationships, you’re picking the “invisible tone” (some pitch not on a piano, but could be on a violin somewhere) between two notes and making the same chordal relationship in exactly the opposite of the other. Like Kirk and Mirror Kirk in Star Trek.
Here’s a quick rundown.
https://m.imgur.com/a/HGxfD
It seems novel; I’m just not yet sure for what use exactly.
Cheers,
Jayson