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"The popularity of the accordion, whose sound was loud enough to carry well across a crowded dance floor, changed Cajun music because the accordion's musical range was more limited than the fiddle’s, incapable of playing as many chords. As Savoy explains in her book, Cajun Music: A Reflection of a People, the accordion was brought to Louisiana in the late 19th century by German immigrants, but, because the accordion was tuned in keys that did not match the "open string" tuning of the fiddlers, it was not incorporated into Cajun music. With the introduction about 1925 of accordions tuned in C and D, Cajun music found an instrument whose sound carried well even during noisy dances. However, since the accordion is more limited in the notes it can produce than the fiddle, some of the old melodies could not be translated into the new style."