Civic Amarillo & Amarillo Opera present the 9th Annual Summer Youth Musical OKLAHOMA! Globe-News Performing Arts Center. Thur, July 7 @ 7:30pm Fri, July 8 @ 7:30pm Sat, July 9 @ 7:30pm Sun, July 10 @ 2:30pm Tickets $20.00 Based on Green Grow the Lilacs, a stage play by Lynn Riggs, Oklahoma! brought together for the first time composer Richard Rodgers and lyricist/librettist Oscar Hammerstein II. The plot is simple, revolving mainly around the question of who will take Laurey Williams to the box social - the decent Curly McLain or the sinister Jud Fry. However, Oklahoma! continued in the tradition of Show Boat in its depiction of the pioneering men and women of the American Southwest.