I've been listening quite carefully to Amede Ardoin's pre-zydeco pre-cajun accordion playing lately, and I can't help but notice in some recordings he sounds like he is chewing on his tongue. I finally realized that quite likely he has a lip or cheek packed with chaw or snuff on some recordings but not others. Then it dawned on me that this unique sound may in fact influence pronunciation by other singers regardless of what is in their mouths. Has anyone else ever noticed this and am I making a big deal out of something trivial? :D