While establishments around Seattle have been turning to opera, country, classical music, or even show tunes (!) to try to discourage undesirable people from congregating or misbehaving in the areas around their premises, Seattle Center will have none of that. This week, KeyArena began pumping out Jay-Z tracks from speakers around the building.The music isn’t intended to attract or repel anyone from the open public area surrounding the Key, says Seattle Center communications director Deborah Daoust. Rather it’s meant to whip up interest in the Jay-Z concert this weekend. She notes that the music, which runs from 4 to 8 p.m. is below the city’s decibel threshold. These days, it’s also about the last thing you might expect to hear being broadcast into any public space after dark.