I started listening to cajun and zydeco music while I was in college at Case Western Reserve University. Nathan Abshire's "Pine Grove Blues" was a classic recording that I encountered back then. Abshire was an important figure in the revival of the accordion in post-World II cajun music. Here is a video of him at Fred's Lounge in Mamou, Louisiana. I don't understand French but one does not need to know the words to appreciate the soulfulness of his music.