For Franz Joseph Haydn, writing concertos for the musicians in his orchestra was one way he tried to ensure their commitment. This is how theCello Concerto No.1 came about:tThe work was a gift to cellist Joseph Weigl, but went missing for nearly 200 years. We’ll hear the lost-and-foundCello Concerto No. 1 in C by Franz Joseph Haydn, our Evening Masterwork at 7 tonight on Classical WSMR.