Much of the music in the show is written in waltz (3/4) time (and all of it is in triple metre), and the work is often considered an operetta rather than standard musical comedy. The score contains Sondheim's best-known song, "Send in the Clowns", as well as such songs as "The Glamorous Life," "You Must Meet My Wife," "Every Day a Little Death," "Liaisons," "In Praise of Women," "A Weekend in the Country," and "The Miller's Son."
A Little Night Music opened on Broadway at the Shubert Theatre on February 25, 1973, with a cast which included Glynis Johns, Len Cariou, Hermoine Gingold, Victoria Mallory, Mark Lambert, Laurence Guittard, Patricia Elliott, and D. Jamin-Bartlett. It won the New York Drama Critics Circle Award and the Tony Award for Best Musical.
A Little Night Music is also an occasionally used translation of Eine Kleine Nachtmusik, the nickname of Mozart's Serenade No. 13 for strings in G major, K. 525.