The American Festival Chorus opens its 2009-10 season Saturday with “An Evening of John Rutter Choral Music.” The concert starts at 7:30 p.m. in the Kent Concert Hall of the USU Chase Fine Arts Center and it is presented by the Utah State University’s Caine School of the Arts.Music Director Craig Jessop. who is head of the Music and Theater Departments, calls Rutter, “one of the most famous living composers in the world today and certainly one of the most popular.” Jessop says the chorus and orchestra will perform an entire concert of Rutter’s works with the first half highlighting his shorter works and the second half his “Mass for the Children” showcasing the Cache Children’s Choir.Tickets are available at the Caine School of the Arts Box Office in the Chase Fine arts Center and at the Ellen Eccles Theatre in downtown Logan.