French composer Bruno Mantovani is on a roll. Seven of his works received premieres over the last year, and guest conductor Marin Alsop and the Chicago Symphony Orchestra will debut an eighth during a set of concerts Oct. 18-20. His new work for the CSO, titled Threnos, is a song or hymn of mourning.Typically, such works are slow and elegiac, but Mantovani wanted to create a threnos that also is what he calls “fast and active.” “That can sound like a contradiction, a paradox, but I think paradox is a good thing in music," he said. "Paradox is one of the motors of my music.” Read more at CSO Sounds & Stories