WHAT NEW IN X11.06 FRI

AI collections from X · 23 collections · 69,408 posts

opus-5.5VIDEO

Opus 5.5 diagnoses a promo video's soundtrack by music theory

The author, who doesn't know music theory, asked Claude Opus 5.5 to find why the promo's music felt jarring at 22 seconds; the model traced it to a D minor swell clashing with a B♭ chord and offered two revised versions.

Nigel Hungerford-Symes
@VectorCrossProdArchived 2026.10.01Originally posted 2026.09.30
Nigel Hungerford-Symes @VectorCrossProdOriginally posted 2026.09.30
Open original on X

I don't know music theory. Claude Opus 5.5 does. I told it the music in my promo video felt jarring at 22 seconds. It checked the levels, said it wasn't volume, and found a swell in D minor clashing with a B♭ chord. Whatever that means... Which version do you like better?

x.com/vectorcrossprod/status/2105105897257377810Archived 2026.10.01 10:27