[2] The accordion fell out of favor in the 1930's, as Anglophone country music and Western swing spread into the region, and amplification allowed string bands to project more sound, first utilized by the Hackberry Ramblers.

However, this trend reversed after World War II, when the accordion became popular in Cajun music once again, exemplified by Iry LeJeune.

[4] Many of the German factories producing diatonic accordions for the United States market were destroyed during World War II.

[5] Since the end of World War II, there has been a surge in the number of Cajun accordion makers in Louisiana, as well as several in Texas.

Clarence "Junior" Martin of Lafayette Louisiana is a Master Craftsman who also builds accordions in his shop.

The accordion was favored for adoption by Cajun musicians due to how loud it was, unamplified, in noisy dance halls; its ability to stay in tune; and its durability.