Amarillo Symphony: The orchestra’s 100th-anniversary season continues with one of the majors: Gustav Mahler’s Symphony No. 5. The bill also features a new composition by Amarillo College’s Nathan Fryml, featuring the Amarillo Master Chorale. (7:30 p.m. Friday; continues Saturday; Globe-News Center for the Performing Arts, 500 S. Buchanan St.; tickets $21 to $71; 806-376-8782)