Former Sitka High brass musician Ross Venneberg is a study in concentration as he joined the 8th Annual Holiday Brass Ensemble for a guest appearance Wednesday night (12-21-11) in the Sitka Performing Arts Center. Venneberg, who now studies at St. Mary’s College in San Francisco, shared the stage with musicians from the San Francisco, Los Angeles, Chicago, Louiville, and Virginia orchestras. The concert is a fundraiser for the Sitka Fine Arts Camp.