Opera51 presents a concert performance of Mozart’s Marriage of Figaro, with chorus and orchestra conducted by Alan Yost. Saturday leads are James Liu, Mike Prichard,  Margretta Beaty, Tamara Grace Jones, Kirsten Hagan, Sarah Mahon, Craig Tata, Len Giambrone, Sean Parr, Lauren Busa, and Chris Loschen. Sunday leads are Max Rydqvist, Carlo Bunyi, Letitia Stevens, Melanie Salisbury, Stephanie Mann, Janet Casey, Craig Tata, Tim Ayers-Kerr, Sean Parr, Liz Clutts, and Thadeus Bell. Call 978 369-7911 for tickets or purchase online.