Serious mental illness might well seem an unlikely jumping off point for musical theater. But with “Next to Normal,” now at the Wilbury Group in Providence, the subject becomes a powerful drama mostly well done.
Brian Yorkey, who wrote the book and lyrics for the engrossing “Next to Normal” once opined that “musicals can be ridiculous.”
“You know, all those people breaking into song all the time,” he said. But the author also pointed out that, somehow, a good musical can be “sublime.”