Because I was a journalist in a previous life, I remember that around the same timeframe (a few years before time), the Brazilian media also adopted the same mo

Because I was a journalist in a previous life, I remember that around the same timeframe (a few years before time), the Brazilian media also adopted the same model. There were two huge radio stations that co-owned other major ones in different cities. They ended up deciding the playlists of FM radio in the entire country. AM radio only played rural-centric music, or music from the 50s or earlier. FM had a small rulebook of what was playable and what wasn't, including in terms of tone and production.