SPONTANEOUS COMBUSTION , a violin concerto by Chris Brubeck, will receive its world premiere at 8 p.m. Saturday, repeating at 4 p.m. Oct. 28, by the Anchorage Symphony Orchestra with violinist Nicolas Kendall. The program also includes music by Gershwin, Bernstein and Dave Brubeck’s teacher, Darius Milhaud. Tickets are $15-$42, available at centertix.net or 263-2787.