Following his return from Romania, where he will have conducted an all-Mozart concert and recording with the Georges Enescu Chamber Orchestra, Ronald Feldman leads the Berkshire Symphony Orchestra in the overture to Rossini’s Barber of Seville, Haydn’s Symphony No. 95, and the world premiere of D.J. Sparr’s Wrought Hocket on Saturday, October 25, at 8 p.m. in Chapin Hall at Williams College. For more information, call (413) 597-2736.