A neighborhood that has had to defend its own existence for eighty years does not throw a festival to attract anybody. It throws one because it is still here.
Leimert Park has been the Black arts district of this city since the 1940s — home to the World Stage, to the legacy of the Brockman Gallery, to a density of music and visual art that survived every wave of development by organizing itself. Once a year all of it goes out into the open air. Multiple stages run at once, the neighborhood's own players share bills with invited guests, and because it is outdoors and informal the exchange between musician and audience happens in real time, the way jazz worked in public before it moved permanently indoors.
Free, all day, in the park, with the K Line stopping right there and food vendors throughout.
Bring the person who only knows jazz from records. Let them hear it argue back.