Violinist Joshua Bell is back in town to record a new Front Row program to stream from the Pittsburgh Symphony website. He plays Vivaldi's Four Seasons complete and a new arrangement of a Chopin Nocturne with cellos and harp both playing and conducting for the first time at Heinz Hall including music by Astor Piazzola in the program.Tthe conversation, recorded onstage at Heinz Hall with masks, touches on his golf outing to Fox Chapel Country Club with violinist Chris Wu, his forthcoming Mendelssohn Trios CD taped at the Capitol Tower in Los Angeles, recent TV programs he has appeared in, as well as pandemic streaming video.