The Concept comes back to the castle as an acoustic duo, playing the 80s, 90s and 2000s pop and rock hits you already know the words to. Saturday, October 17 from 6:00 to 9:00 PM at The Tavern at Silver Stone Castle. No cover charge and no admission fee at the Castle. Come early for dinner and the chef’s specials, grab something from the bar, and stay for the music. Family friendly. Silver Stone Castle, 358 GAR Highway, Swansea, MA.