All this is to say Casey's cast can handle whatever is tossed its way. They sing for a house twice the size of Montgomery's, don't mind looking ridiculous, and maintain an unflagging energy level that keeps musical director Michele M. Ferdinand - seated center stage at a piano - and her nimble fingers hard at work throughout.
Through May 4 at Montgomery Theater, 124 N. Main St., Souderton.
Tickets: $29-$34. Information: 215-723-9984 or www.MontgomeryTheater.org