In the late 19th century, the word "suite" started to be used again. Composers who had written opera's or ballets with lots of popular dance movements often made an arrangement of these movements for orchestra so that it could be played at concerts. Tchaikovsky wrote the "Nutcracker Suite" which includes the most popular dances from his ballet "The Nutcracker". Some composers used the word "suite" for pieces with movements which had a common theme: Gustav Holst called "The Planets" a suite, as each movement is about one of the planets. French composers of the Impressionist period such as Ravel and Debussy wrote suites for piano.