The Dying Swan
From Memory Alpha, the free Star Trek reference
The Dying Swan (originally known as Le Cygne) is a piece of ballet music composed by Camille Saint-Saëns in the late 19th century.
During a talent night aboard the USS Voyager in 2373, Captain Kathryn Janeway danced to the music of The Dying Swan. She learned the dance when she was six years old. (VOY: "Coda")
