Music, arts, drum circle, hands-on sensory buffet, silent disco, & more. $17.85–$71.21. (On-line ticket sales help fund bands, gear, and insurance.) Bilingual festival. 11 a.m.–5 p.m. Lucchesi Park. 320 N. McDowell Blvd., Petaluma. Tickets: tinyurl.com/4nascsmk.