Sangamon Valley Youth Symphony in Springfield and Singer Diana Chittester in Rochester

It’s a sad fact that many schools throughout the country have eliminated their orchestral programs. That happened in the Springfield area during the 1970s, but into the void stepped the Sangamon Valley Youth Symphony, which supports four ensembles, as well as an adult community orchestra. They’ll all perform this weekend, and we’ll hear details on the Thursday edition of “Live and Local.” I’ll talk also with singer-songwriter Diana Chittester, who plays in Rochester on Friday.