Hudson Harding Sampler, Vol. 11: Happy Holidays, a compilation CD distributed by radio promoter Erik Balkey, was the most-played album on folk radio during December 2016. Dar Williams’ “Christians and the Pagans” tied with John McCutcheon’s classic “Christmas in the Trenches” as the month’s most-played song. So say charts compiled by Richard Gillmann from radio playlists submitted to FOLKDJ-L, an electronic discussion group for DJs and others interested in all folk-based music on the radio. [The top albums and songs charts are posted on AcousticMusicScene.com, with permission. To view them, click on the headline.]