Independently of each other, Rodgers and Hammerstein had been attracted to making a musical based on Lynn Riggs' stage play Green Grow the Lilacs. When Jerome Kern declined Hammerstein's offer to work on such a project and Hart refused Rodgers' offer to do the same, Rodgers and Hammerstein began their first collaboration. The result, Oklahoma! (1943), marked a revolution in musical drama. Although not the first musical to tell a story of emotional depth and psychological complexity, Oklahoma! introduced a number of new storytelling elements and techniques. These included its use of song and dance to convey and advance both plot and character rather than act as a diversion from the story and the firm integration of every song into the plot-line.  Oklahoma! was originally called Away We Go! and opened at the Shubert Theatre in New Haven in March 1943. Only a few changes were made before it opened on Broadway, but three would prove significant: the addition of a show-stopping number, "Oklahoma!"; the deletion of the musical number "Boys and Girls Like You and Me", which would soon after be replaced with a reprise of "People Will Say We're in Love"; and the decision to re-title the musical after the song.  The original Broadway production opened on March 31, 1943, at the St. James Theatre. Although the typical musical of the time was usually written around the talents of a specific performer, such as Ethel Merman or Fred Astaire, no stars were used in the production. Ultimately the original cast included Alfred Drake (Curly), Joan Roberts (Laurey), Celeste Holm (Ado Annie), Howard Da Silva (Jud Fry), Betty Garde (Aunt Eller), Lee Dixon (Will Parker) and Joseph Bulloff (Ali Hakim). Marc Platt danced the role of "Dream Curly", and Katharine Sergava danced the part of "Dream Laurey". In Oklahoma!, the story and the songs were considered more important than sheer star power. Nevertheless, the production ran for a then-unprecedented 2,212 performances, finally closing on May 29, 1948. Many enduring musical standards come from this show, among them "Oh, What a Beautiful Mornin'", "The Surrey with the Fringe on Top", "I Cain't Say No", the aforementioned "People Will Say We're in Love", and "Oklahoma!".  In 1955 it was made into an Academy Award-winning musical film, the first feature shot with the Todd-AO 70 mm widescreen process. The film starred Gordon MacRae and Shirley Jones, and its soundtrack was #1 on the 1956 album charts.  After their initial success with Oklahoma!, the pair took a break from working together and Hammerstein concentrated on the musical Carmen Jones, a Broadway version of Bizet's Carmen with the characters changed to African Americans in the contemporary South, for which he wrote the book and lyrics. The musical was adapted to the screen in 1954, and scored a Best Actress Oscar nomination for leading lady Dorothy Dandridge.

Answer this question "What type of new storytelling elements were introduced?" by extracting the answer from the text above.
These included its use of song and dance to convey and advance both plot and character rather than act as a diversion from the story and