The third annual Middlebury Chamber Music Festival offers four days of concerts and classes for musicians and classical music fans alike. A highlight of this year’s program is Saturday’s gala concert featuring visiting faculty members Miho Weber (pictured) on cello and Jonathan Weber, Marc Ramirez and Olivia Hajioff on viola and violin. Bows in hand, the foursome captivates listeners with movements from string quartets by Dmitri Shostakovich, Joseph Haydn and Felix Mendelssohn. The players also pair off for duets by Erwin Schulhoff and Aleksey Igudesman. Proceeds from this bow-and-string session benefit Middlebury Community Music Center scholarships and the St. Stephen’s Episcopal Church on the Green.