MacArthur Park is one of Los Angeles's oldest public parks — a gathering place that has persisted through every era of the city's growth and every community that has lived around it. The Levitt Pavilion Los Angeles runs free outdoor concerts from June through October in the park's western section. The programming leans toward Latin, world music, and the genres that reflect the community surrounding the park. The artists are not headliners. They are musicians with serious credentials who tour internationally and play here because the Levitt network runs on quality, not visibility. The crowd that fills the pavilion on concert nights is primarily the neighborhood: Central American, Mexican, Filipino, …