Cajun music (), an emblematic music of Louisiana played by the Cajuns, is rooted in the ballads of the French-speaking Acadians of Canada. Although they are two separate genres, Cajun music is often mentioned in tandem with the Creole-based zydeco music. Both are from southwest Louisiana and share French and African origins. These French Louisiana sounds have influenced American popular music for many decades, especially country music, and have influenced pop culture through mass media, such as television commercials. Musical theory Cajun music is relatively catchy with an infectious beat and a lot of forward drive, placing the accordion at the center. The accordionist gives the vocal melody greater energy by repeating most notes. Besides the voices, only two melodic instruments are heard, the accordion and fiddle, but usually in the background can also be heard the high, clear tones of a metal triangle. The harmonies of Cajun music are simple and the melodic range is just one octave, rising a fifth above the tonic and descending a fourth below. Because the Cajun accordion is a diatonic instrument (do-re-mi or natural major scale) it can only play tunes in a few keys. For example, a "C" accordion is tuned such that the entire C scale is available on the ten buttons (over two octaves) and it can play a tune in the key of C with all the notes of the C scale available (C-D-E-F-G-A-B). A "C" accordion can also play a few Cajun songs in the key of F however the Bb note will be missing. Also it can play in the key of D with a "bluesy" sound since the F natural note becomes a flat third or minor third in the key of D. However a skilled accordion player can play in these other keys and still make good music whereby the notes missing (because of the limitations of the diatonic tuning) are not needed by the melody. Since an instrument must match the singer's range, much Cajun singing is sung in the singer's upper range. History of Cajun music Origins It is unlikely that musical instruments were introduced to colonial Louisiana before around 1780. Although originally there were no instruments, there were songs. Families sung traditional French songs called complaintes which the Cajuns adapted to their new ways of life. The first known record was of a violin in 1780 and a fiddle and clarinet player