The yearly On Broadway Gala from the Diablo Regional Arts Association is always a can’t-miss evening. This fall’s sold-out auctions, champagne reception, alfresco dinner, and dancing served as the opening of the new season at the Lesher Center for the Arts in Walnut Creek and brought in around $300,000 for the center’s programming. Performers during the event included the Phat Strad electric string quartet and Renée Lubin of the Beach Blanket Babylon revue.