By Wendy Rosenfield

for the Inquirer

There's not much to Montgomery Theater's production of The Musical of Musicals (The Musical!), and yet there's so much to like about this silly spoof that takes one familiar story line and stretches it across the latter two-thirds of the 20th-century musical stage. It doesn't hurt that director/choreographer Stephen Casey assembled a top-notch quartet of performers and one seriously indefatigable pianist to carry the show-folk in-jokes all the way to curtain.

Written by Eric Rockwell and Joanne Bogart, The Musical of Musicals skewers 51/2 prime cuts from Broadway's most sacred cows to make for one longish comic kebab. Each segment's premise covers the "You must pay the rent!"/"I can't pay the rent!"/"I'll pay the rent!" landlord/lady tenant/dashing hero tale, with a knowing older woman thrown in for good measure and questionable advice.

Thus, Michael Doherty, Chelsea Grace Claiser, Joseph Michael O'Brien, and Erica Scanlon Harr wend their way through variations on characters named Big Willy, June, Jitter, and Abby, first with "Corn," a Rodgers and Hammerstein roundup that takes its notes from Oklahoma! ("The wind whispers secrets/the field is all ears"), The King and I, and The Sound of Music. They change into '70s street clothes and grab four chairs for "A Little Complex," a Sondheim mashup about a condo complex (The Woods) whose painter landlord has a murder problem. "Dear Abby" introduces a Jerry Herman Mame-meets-Dolly figure (sung gloriously by Harr).

The show's second act drops a chandelier on Andrew Lloyd Webber with "Aspects of Junita," during which O'Brien's phantom landlord reveals that behind the mask he's really a cat; hits a high note with the pleather- and bustier-strutting Kander and Ebb and Fosse-ish "Speakeasy" (rather than giving a wilkommen, O'Brien's emcee Jitter offers "Hasta la vista and erin go bragh, achoo and gesundheit!"); and goes out in a Chorus Line kickline with "Done."

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