In today's installment of "Lost and Found Sound," we hear a story from writer Tracy Johnston about a sound she collected years ago while traveling in Africa. She was visiting northern Nigeria with a friend who was returning to his grandfathers' village. And she was struck by the greetings people exchanged. It was not just what people had to say, asking about every member of the family, the cattle and all your possessions, but also how it was delivered. There was a joy and love in their expressions — something she listens to every once in a while to once again feel that sense of connectedness. (6:15) The music used as part of the piece was the following, Miriam Makeba - "SANGOMA" (South African) (Warner Bros. Records) CUT 17 - "UMAM' UYAJABULA" ("Mama is Happy") The music that followed the piece is listed below.