Here is a great duo I discovered recently on accordion and violin called La Forcelle. The accordion player is excellent. Her name is Lolita Delmonteil Ayral.
Check out this great music. The violin and accordion sound great in unison.
Makes you want to join in the dance.
Here is my great uncle bob 97 who i think is the best but i am bias,
he entertained the troops when he landed on D Day and always loved France so moved there playing accordion in local restaurants.