HUDSON - Members of the a cappella group Simple Harmonic Motion and members of the Pro Musica Youth Chorus will team up for a Spring Sing concert at 7 p.m.
Mahoney Jr.; (2) Michael Durkin; (3) Darci Acomb; (4) Simple Harmonic Motion, an a cappella ensemble, which includes (back row, second from left) Kevin Black of Northboro, will be singing with Pro Musica Youth Chorus on March 28, at Hudson Town Hall, 78 Main St.