Jewels and Harmony, a collection of 15 hand-picked and beautifully interpreted contemporary folk songs by New Jersey-based folksinger and jewelry designer Mara Levine, was the most-played album on folk radio in January. Her second release includes a moving arrangement of Michael Smith's classic "The Dutchman," as sung by Levine and Si Kahn, and "When I Sing With You," a song that Kahn wrote for the album that features Gathering Time and Joe Jencks on harmony vocals. Those were the top two songs of the month, according to charts compiled by Richard Gillmann from radio playlists submitted to FOLKDJ-L, an electronic discussion group for DJs and others interested in folk-based music on the radio. [Click on headline to view charts.]...