'Yentl': Pop music in the shtetl

Like its audacious heroine, the new stage version of "Yentl" gets itself into a bit of a pickle. To Isaac Bashevis Singer's tale of a young, knowledge-craving Jewish woman who disguises herself as a yeshiva boy has been added a pop score by Jill Sobule and Robin Eaton that strives to give the evening some contemporary verve.