Plateau Community Orchestra concert April 7 Pam Shinsato is the director and the concert will be less than an hour. April 6, 2015 1:19 am Plateau Community Orchestra is in concert 7 p.m. Tuesday, April 7, at Hi-Point Village in Enumclaw. The concert is free to the public. Pam Shinsato is the director and the concert will be less than an hour.