The accordion is a great instrument for ethnic music. You can find a history of the accordion here. It was very popular in this country in the 1950s. (Even I took accordion lessons briefly.) When Rock and Roll took over, the guitar became the instrument most young people wanted to play.
Hubby started accordion lessons when he was seven. Later, he took up the guitar, too, briefly. But he enjoys the versatility of the accordion.
I enjoy the old time songs. They are so sweet--all about love and romance--and I can understand every word! :^) Click on the link below to listen to one that hubby plays all the time.