Put together a breakdown of why augmented chords create that unresolved, cinematic quality - covering the harmonic principle behind the sound rather than a theory lecture.
The whole thing comes from one interval: the major 3rd, stacked on itself twice. That symmetry is why the chord has no natural home note pulling it back down - it just hangs there, unresolved. Same shape logic works in both major and minor, and the mood shift between the two is significant.
The lesson covers three voicings in each flavor with written examples, an arpeggiated phrase showing how they connect into one continuous idea, and a second principle covering borrowed chords from the parallel key - how pulling one chord from B major or B minor into a progression creates that “shouldn’t belong here but does” moment that shows up in a lot of film scoring.
There’s a third piece covered in the free PDF - harmonic rhythm, how fast you move between chords changes the feeling as much as the chords themselves. Slow it down and it broods. Speed it up toward the V chord and it pulls forward instead of sitting static.
Full breakdown with the complete five-chord borrowed-key set and both augmented flavors in the free PDF.
Happy to answer any questions about the augmented shapes or how the borrowed chords connect in the comments.
What first got you interested in this kind of harmonic color?
https://guitar-woodshed.com/cinematic-guitar-chords/