The good people at World Famous Productions are putting on "Battle of the Bass 2" at the Jambalaya in Arcata on Saturday night. Local electronic music producers were asked to submit 30-minute mixes (to email@example.com) before Aug. 1 to essentially compete for an opening slot on World Famous' fall artist lineup. On Saturday at 9 p.m., the top six or seven artists whose mixes were selected will compete for the delight of the 21-and-over crowd at the Jam at 915 H St. Audience votes determine the winner. Advance passes are available for $10 at worldfamous.inticketing.com.