When do rock, pop, country, folk, jazz and blues songwriters meet up to play a show together? Beginning May 6, they'll do it once a month at Linnaea's Cafe in San Luis Obispo. The showcase is presented by West Coast Songwriters, a Bay Area-based non-profit educational organization with more than 1,200 members. Local WCS member Steve Key of Pismo Beach is the manager of the showcase, which will be held on first Sundays at Linnaea's. Shows begin at 7pm. There is no cover charge. All ages are welcome. Performers may sign up at 6:30pm for a two-song slot. Poets and composers are also welcome. Part of the show will be a competition among WCS members for Best Song and Best Performance of the night. Anyone can perform on the showcase, but only WCS members are eligible to compete. Painted Sky Studios of Cambria has donated two hours of recording time to the Best Song winner. Guest judges include professional songwriters Jill Knight of Cambria and Doug Clegg of Santa Barbara. Public Radio host Sonnie Brown of KCBX will MC. West Coast Songwriters runs nine showcases a month in Hollywood, Sacramento, around the Bay Area and now in SLO. In August, each showcase will invite its Best Song winners to return for a playoff -- one winner from each showcase goes to the finals held at the Freight & Salvage nightclub in Berkeley. Three winners are picked to perform in front of publishers, producers, booking agents, hit songwriters and record company executives at the 27th Annual Songwriters Conference at Foothill College in Los Altos September 7-9. Linnaea's Cafe is located at 1110 Garden St., SLO. www.linnaeas.com.