The Petaluma Arts Association presents its 59th annual celebration of music and art in Walnut Park. Take a picnic, a chair or blanket, and settle in for a day of live entertainment by a number of local musicians and stroll through a variety of works by local artists. There will be fine artists and crafters selling their works and giving demonstrations. Music will be preformed both days by local artists, including C Street Trio, Jacob Green, Wisp and Willow, Benjamin Glascoe, Dave Hamilton, and Sourdough Saxtet. Children will be welcome and there will be art activities for them to enjoy. This year PAA is reviving an old tradition and will be offering a raffle of fine art works donated by participating artists. Tickets may be purchased at the information table or from participating artists; the drawings will be held at 4 p.m. on Sunday. Winners need not be present.