Jacyn Tremblay during a performance of "Muse: A Salute to Divas of Rock" at The Cabot on Jan. 14. (Courtesy Peter Higgins) If you toss out the term “diva” to someone, you’ll likely elicit one of these ...

Opera singers are admired for their powerful and expressive voices, achieved through years of rigorous training. In opera singing competitions, judges evaluate the performances of aspiring singers by ...