The musical piece "Clair De Lune" was composed in 1890 by Claude Debussy, a French composer. The piece is a solo piano movement from his Suite bergamasque. Debussy died in 1918, and according to the current copyright laws, his works entered the public domain in the United States in 1999, 50 years after his death. This means that the piece can be freely copied, distributed, and performed without the need to obtain permission or pay any royalties.