The Netflix show "1983" keeps insinuating this tense chord at closing credits (and more subtly as nondiegetic background). It seemed to resolve, or rather stum

The Netflix show "1983" keeps insinuating this tense chord at closing credits (and more subtly as nondiegetic background). It seemed to resolve, or rather stumble into a disonance as if just the exact wrong note was played. It was driving me mad -- a few times I caught myself during work hours trying to reproduce it from memory in MuseScore. It was finally played fully in the last episode, and the aha moment was that what appeared to be a minor chord before The Chord was a major seventh and the progression resolved neatly. What it seems to have been done is to play multiple variants that played component notes differently at different velocities (the strength with which you hit a piano key). It's like it moved by aporias, each time leading you into a different impasse. The show's plot is sort of like that too. This is to say -- there's more to music than chord progressions, and there's more to chord progressions than chords :)