Known for its tight vocal harmonies and solid traditional bluegrass sound, the Reunion Band features veteran Boston-area musicians Richard Brown (mandolin), Dave Dillon (rhythm guitar), Margaret Gerteis (acoustic bass), Lauck Benson (banjo) and Art Schatz (fiddle). The band, which has been around since 2002, takes its name from the fact that its members have played together off and on and in various configurations for over 30 years.