Inversely related intervals, and a good example of both directions at once musically, as expresed in the title of the recent John Coltrane release expose' on Impulse Records from the RVG Studio vaults; a quite piquant and tangy effect to say the least.😊
More on the interval theory you mention? Mysterious, dense music, with the band unanimous. Not outgoing, as to 'pulling in the audience', but the live energy would have made up for that. It's a through-composed piece in effect, with almost no sense of internal chorus units, and has an unusual impact - when it's over, you realize you've really heard something!
This draws a corrolary that harks back to the seminal, ground-breaking Andrew Hill date 'Andrew' on Blue Note Records, amazingly recorded in 1964; a full 7 years before this performance date. The main takeaway is the instrumentation configuration. This is a logical next step, as if it is a huge homage and remembrance, albeit venue and contextually different.
So, so good. This is my favorite combo of the era. Starting with Harold Land's album The Peace-Maker, they put out an incredible body of work. This is the first video I've seen. It made my day. Thanks! I would love to see more.