Sanshin shop, that is, and around the corner means just off the famous Kokusai Dori, the Fifth Avenue of Naha in Okinawa.
Here you can hear the owner and chief craftsman of Chindami, one of my favorite sanshin shops, in a duet. The song is called Tohshin Doi, and is a happy song that celebrates a ship's homecoming.
http://www.youtube.com/watch?v=4scZsVHyxNE