Free, family-friendly event in the River Market District is open to the public. The Lineup: April 5 - The Funkanites, April 12 - Ramona, April 19 - Tonya Leeks & Co., April 26 - Sounds So Good. Coolers are not allowed at Jazz in the Park, but adult drinks, soft drinks, water, popcorn and koozies will be available for sale, with a portion of the proceeds going to benefit Art Porter Music E.