This style comprises the roots of Cajun dance music, involving only a few instruments such as the Cajun accordion, fiddle, and triangle. This form holds firm to a basic rhythm with staccato style notes, including many fiddle double stops. Each fiddle solo is composed of a major scale riff, repeated between verses. This form has existed since the early 1900s and the waltz and two-step are the most common dances of this Cajun music genre. Many songs that became standards in the Cajun music repertoire were first recorded in this period of the 1920s and 1930s. A number of the most prominent traditional Cajun musicians are featured in the 1989 documentary "J'Ai Ete Au Bal". Amédé Ardoin, Canray Fontenot, Wade Frugé, Dewey Segura, Joe Falcon and Cléoma Falcon, and the Breaux Brothers are examples of this genre. This style involves heavy elements of Texas country music influence and a move away from the traditional accordion. This music has more of a "swing" style popularized by Bob Wills and the Texas Playboys. Instead of the music being dominated by the accordion, Cajun swing relies heavily on the fiddle and piano with a swinging tempo. Bands in the 1940s began using the steel guitar, an instrument which also found use in dancehall Cajun music. Dances such as "the jig" are common among this genre of Cajun music. Leo Soileau, J. B. Fuselier, Leroy "Happy Fats" Leblanc, Harry Choates and the Hackberry Ramblers are early examples of this style. The Red Stick Ramblers and The Lost Bayou Ramblers are contemporary bands playing in this style. This style, Dancehall Cajun is often known in South Louisiana as ""Fais do-do"" music because it is commonly played at "fais do-dos"; this in turn comes from the local practice of couples bringing their children with them to the dance hall. This period is defined as such due to the fact that more bands moved from the house dances to large halls, as well as, electrical amplification of instruments to cut through the noise of the crowd. It is similar to traditional Cajun music with added accompaniment such as the bass guitar, drum kit, steel guitar, and rhythm guitar, electric or acoustic. The same abrupt, staccato feel can be felt as in traditional Cajun.