The Northern Groove Band will playing at 8:30 p.m., Friday, April 17 at Mixers in Sabattus. There is no cover.  The band plays a mix of R&B, classic rock, blues, country, contemporary, disco and funk. Members of the band are: Noni Robinson, lead vocalist and manager; Steve Arsenault on drums; Shawn Griffin, guitar and vocals Dan Knowles, bass guitar and vocals and Scott Shuster on keyboards