The musical The Baker’s Wife has had a notoriously checkered history. With a book by Joseph Stein and music and lyrics by the young Stephen Schwartz, it first appeared in 1976. But, amid casting changes (Patti LuPone survived) and infighting, producer David Merrick closed it before it got to Broadway. Over the years it has had many iterations, in hopes of correcting whatever sank it then (critics excoriated the book but praised the music). LuPone’s song “Meadowlark” has become a standard for cabaret singers. The current revival at the Classic Stage Company (CSC), boasting a stellar cast, is likely to be its best shot at resuscitation.