Heather Pierson Acoustic Trio had both the most-played album (Singin’) and song (“Dark as a Dungeon”) on folk radio during July 2017. 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 monthly top albums and songs charts are posted on AcousticMusicScene.com with permission. To view them, click on the headline.]