A reception is scheduled Wednesday in association with a new exhibit at the History Museum of Hood River County entitled “The Columbia Gorge Sinfonietta:  Evolution of a Homegrown Orchestra.”  Columbia Gorge Orchestra Association executive director Mark Steighner says the exhibit celebrates 40 years of the Sinfonietta and its roots dating back to the mid-20th Century and a Finnish immigrant named Boris Sirpo, who envisioned Hood River becoming the “Salzburg of America.”  The reception will be from 6 p.m. to 8 pm. Wednesday at the History Museum of Hood River County in Port Marina Park.  The exhibit will be on display through December.