Also: Chadds Ford Art Show; Sound of Music in Philly By Denny Dyroff, Staff Writer, The Times Children are never too young to be introduced to the joy of listening to classical music. The Kennett Symphony of Chester County (610-444-6363, www.kennettsymphony.org) helps the cause by presenting its “Annual Children’s Concert & Post-Concert Instrument Zoo” every year to give young children...