>>/55064/
So apparently it wasn't a face to face meeting but an "indirect" talk.
The representatives of the two sides talked to an Omani mediator, the Foreign Minister there.
US introduced new sanctions.
https://apnews.com/article/iran-us-protests-nuclear-negotiations-oman-muscat-32d621b98f7a3a68831f885d262bb70e

Reading Overthrow:  >>/55061/, got the Iranian coup against Mossadegh.
The CIA created quite a disorder by funding opposing gangs, and paying the cops who's job was to stop the thugs doing ruckus.
It's a pretty solid guess they are playing from the old sheet music.