The Longest Night of the Year, Vol. 1 by Various Artists (Hudson Harding Music) was the top album on folk radio during December 2018, while Noel Paul Stookey’s “Christmas Dinner” and John McCutcheon’s classic “Christmas in the Trenches” were the month’s most-played songs. So say charts compiled from radio playlists submitted to FOLKDJ-L, an electronic discussion group for DJs and others interested in folk-based music on the radio. [To view the monthly top albums and songs charts, which are posted here with permission, click on the headline.]