The title "Eine kleine Nachtmusik" means literally: "A little Night Music". "Nachtmusik" was a title which was often given to serenades in the 18th century. A serenade in the 18th century was a lighthearted piece of music, often played during feasts. This serenade is written for two violins, viola, and cello and possibly a double bass as well. It is either performed as a string quartet (just four players) or by a small group of instruments, in which case at least one double bass is normally added.