Soprano and U-M alumna Jessye Norman joins a roster of guest soloists performing with the San Francisco Symphony, in the symphony’s American Mavericks Festival. Performances are 7:30 p.m. Thursday, and 8 p.m. Friday and Saturday in Hill Auditorium. The festival closes with a chamber concert at 4 p.m. Sunday in Rackham Auditorium. The festival is presented by the University Musical Society. Photo by Carol Friedman.