J.A.M. Sessions began in 2008 at the John Anson Ford Amphitheatre. The idea is that these events are both free and participatory. The Ford’s summer series is put on by the Los Angeles County Arts Commission, which has an entire program called “Free Concerts in Public Sites.”
These free concerts have expanded in the last 5 years and now there are free J.A.M. Sessions in 5 locations throughout the county, from Newhall to Watts.
On the steps of the venue was a jam session lead by Ben Guzman of Triple Chicken Foot, and on the stage of the Egyptian influenced deco stage was a square dance called by Susan Michaels. Though the 1200 seats were mostly empty, there were over 50 dancers hooping and hollering around the 93-year-old theatre’s stage.
For more about J.A.M. Sessions check here: http://www.fordtheatres.org/en/events/category/id/37