Basically, on several ocasions in different countries in Europe, I’ve been approached by ticket scalpers trying to sell me tickets for a “4 seasons” performance. I guess it’s an easy way to make money for second grade musicians. Everyone will recognize the pieces and tourists can feel “classy” by attending such a concert. Their marketing tactics are kind of shady, obviously it isn’t the national philarmonic who’s organizing these concerts lol. Besides, every classical fan will already be tired of Vivalvi, so they’re trying to appeal to the general public by playing the equivalent of “pop’s greatest hits”.
I’m also guessing that these concerts are happening almost every single day on repeat, otherwise it would have been an enormous coincidence.