The Elgin Symphony Orchestra welcomes guest conductor Lee Mills for a program featuring Charles Ives’ “The Unanswered Question,” Juan David Osorio’s “El Paraiso según María,” Arturo Márquez’s “Danzón No. 2,” and Dvořák’s “Cello Concerto” featuring Cuban-American cellist Thomas Mesa.

Tickets for the March 4, 7:30 p.m., and the March 5, 2:30 p.m., concerts at the Hemmens Cultural Center in Elgin, Ill., start at $20. Student tickets are $10 and youth age 17 and younger are free with an accompanying adult. Purchase tickets on the ESO’s website, www.ElginSymphony.org, and, from 10 a.m. – 3 p.m., Tuesday through Friday, by calling its box office at 847-888-4000.