Stephen Sondheim died a year ago today at the age of 91. If the musical theater composer and lyricist was revered during his lifetime, attention to his work has only accelerated in the year since his death, not least from a spate of New York revivals — last season’s “Company,” which won five Tony Awards including Best Revival and the current acclaimed “Into the Woods,” with “Merrily We Roll Along” scheduled to open next month Off-Broadway and “Sweeney Todd” this Spring on Broadway — as well as the new movie of “West Side Story,” and a series of books.

Test whether your knowledge of his work has kept pace, with this ten-question quiz.