The Medford Public Library is offering a folk music lesson for kids ages 3 to 7 led by Mr. Seth Hanson, outside on the Cummings Patio (weather permitting). Sing and dance to traditional and original interactive family music. Join in with voices, instruments, and imagination for a fun-filled sing-along jam session. Registration is required; email Sam Sednek of the library staff at ssednek@minlib.net.